21000992148

素因数分解:

$2^2\times 3^5\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{1931}}^1$

素因数の和:2184

約数の個数: 144

約数和(自身を含む): 56237336064

約数和(自身を除く): 35236343916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 67, 81, 108, 134, 162, 167, 201, 243, 268, 324, 334, 402, 486, 501, 603, 668, 804, 972, 1002, 1206, 1503, 1809, 1931, 2004, 2412, 3006, 3618, 3862, 4509, 5427, 5793, 6012, 7236, 7724, 9018, 10854, 11189, 11586, 13527, 16281, 17379, 18036, 21708, 22378, 23172, 27054, 32562, 33567, 34758, 40581, 44756, 52137, 54108, 65124, 67134, 69516, 81162, 100701, 104274, 129377, 134268, 156411, 162324, 201402, 208548, 258754, 302103, 312822, 322477, 388131, 402804, 469233, 517508, 604206, 625644, 644954, 776262, 906309, 938466, 967431, 1164393, 1208412, 1289908, 1552524, 1812618, 1876932, 1934862, 2328786, 2718927, 2902293, 3493179, 3625236, 3869724, 4657572, 5437854, 5804586, 6986358, 8706879, 10479537, 10875708, 11609172, 13972716, 17413758, 20959074, 21605959, 26120637, 31438611, 34827516, 41918148, 43211918, 52241274, 62877222, 64817877, 78361911, 86423836, 104482548, 125754444, 129635754, 156723822, 194453631, 259271508, 313447644, 388907262, 583360893, 777814524, 1166721786, 1750082679, 2333443572, 3500165358, 5250248037, 7000330716, 10500496074, 21000992148]

約数ペア:

[(1, 21000992148), (2, 10500496074), (3, 7000330716), (4, 5250248037), (6, 3500165358), (9, 2333443572), (12, 1750082679), (18, 1166721786), (27, 777814524), (36, 583360893), (54, 388907262), (67, 313447644), (81, 259271508), (108, 194453631), (134, 156723822), (162, 129635754), (167, 125754444), (201, 104482548), (243, 86423836), (268, 78361911), (324, 64817877), (334, 62877222), (402, 52241274), (486, 43211918), (501, 41918148), (603, 34827516), (668, 31438611), (804, 26120637), (972, 21605959), (1002, 20959074), (1206, 17413758), (1503, 13972716), (1809, 11609172), (1931, 10875708), (2004, 10479537), (2412, 8706879), (3006, 6986358), (3618, 5804586), (3862, 5437854), (4509, 4657572), (5427, 3869724), (5793, 3625236), (6012, 3493179), (7236, 2902293), (7724, 2718927), (9018, 2328786), (10854, 1934862), (11189, 1876932), (11586, 1812618), (13527, 1552524), (16281, 1289908), (17379, 1208412), (18036, 1164393), (21708, 967431), (22378, 938466), (23172, 906309), (27054, 776262), (32562, 644954), (33567, 625644), (34758, 604206), (40581, 517508), (44756, 469233), (52137, 402804), (54108, 388131), (65124, 322477), (67134, 312822), (69516, 302103), (81162, 258754), (100701, 208548), (104274, 201402), (129377, 162324), (134268, 156411)]