20921878548

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{3833}}^1$

素因数の和:4014

約数の個数: 144

約数和(自身を含む): 56180307456

約数和(自身を除く): 35258428908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 67, 73, 93, 124, 134, 146, 186, 201, 219, 268, 279, 292, 372, 402, 438, 558, 603, 657, 804, 876, 1116, 1206, 1314, 2077, 2263, 2412, 2628, 3833, 4154, 4526, 4891, 6231, 6789, 7666, 8308, 9052, 9782, 11499, 12462, 13578, 14673, 15332, 18693, 19564, 20367, 22998, 24924, 27156, 29346, 34497, 37386, 40734, 44019, 45996, 58692, 68994, 74772, 81468, 88038, 118823, 137988, 151621, 176076, 237646, 256811, 279809, 303242, 356469, 454863, 475292, 513622, 559618, 606484, 712938, 770433, 839427, 909726, 1027244, 1069407, 1119236, 1364589, 1425876, 1540866, 1678854, 1819452, 2138814, 2311299, 2518281, 2729178, 3081732, 3357708, 4277628, 4622598, 5036562, 5458356, 7961141, 8674079, 9245196, 10073124, 15922282, 17348158, 18747203, 23883423, 26022237, 31844564, 34696316, 37494406, 47766846, 52044474, 56241609, 71650269, 74988812, 78066711, 95533692, 104088948, 112483218, 143300538, 156133422, 168724827, 224966436, 286601076, 312266844, 337449654, 581163293, 674899308, 1162326586, 1743489879, 2324653172, 3486979758, 5230469637, 6973959516, 10460939274, 20921878548]

約数ペア:

[(1, 20921878548), (2, 10460939274), (3, 6973959516), (4, 5230469637), (6, 3486979758), (9, 2324653172), (12, 1743489879), (18, 1162326586), (31, 674899308), (36, 581163293), (62, 337449654), (67, 312266844), (73, 286601076), (93, 224966436), (124, 168724827), (134, 156133422), (146, 143300538), (186, 112483218), (201, 104088948), (219, 95533692), (268, 78066711), (279, 74988812), (292, 71650269), (372, 56241609), (402, 52044474), (438, 47766846), (558, 37494406), (603, 34696316), (657, 31844564), (804, 26022237), (876, 23883423), (1116, 18747203), (1206, 17348158), (1314, 15922282), (2077, 10073124), (2263, 9245196), (2412, 8674079), (2628, 7961141), (3833, 5458356), (4154, 5036562), (4526, 4622598), (4891, 4277628), (6231, 3357708), (6789, 3081732), (7666, 2729178), (8308, 2518281), (9052, 2311299), (9782, 2138814), (11499, 1819452), (12462, 1678854), (13578, 1540866), (14673, 1425876), (15332, 1364589), (18693, 1119236), (19564, 1069407), (20367, 1027244), (22998, 909726), (24924, 839427), (27156, 770433), (29346, 712938), (34497, 606484), (37386, 559618), (40734, 513622), (44019, 475292), (45996, 454863), (58692, 356469), (68994, 303242), (74772, 279809), (81468, 256811), (88038, 237646), (118823, 176076), (137988, 151621)]