20921241684

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{2663}}^1$

素因数の和:3146

約数の個数: 144

約数和(自身を含む): 58776109056

約数和(自身を除く): 37854867372

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 49, 62, 84, 93, 98, 124, 147, 186, 196, 217, 294, 372, 431, 434, 588, 651, 862, 868, 1293, 1302, 1519, 1724, 2586, 2604, 2663, 3017, 3038, 4557, 5172, 5326, 6034, 6076, 7989, 9051, 9114, 10652, 12068, 13361, 15978, 18102, 18228, 18641, 21119, 26722, 31956, 36204, 37282, 40083, 42238, 53444, 55923, 63357, 74564, 80166, 82553, 84476, 93527, 111846, 126714, 130487, 160332, 165106, 187054, 223692, 247659, 253428, 260974, 280581, 330212, 374108, 391461, 495318, 521948, 561162, 577871, 654689, 782922, 990636, 1122324, 1147753, 1155742, 1309378, 1565844, 1733613, 1964067, 2295506, 2311484, 2618756, 3443259, 3467226, 3928134, 4045097, 4591012, 6886518, 6934452, 7856268, 8034271, 8090194, 12135291, 13773036, 16068542, 16180388, 24102813, 24270582, 32137084, 35580343, 48205626, 48541164, 56239897, 71160686, 96411252, 106741029, 112479794, 142321372, 168719691, 213482058, 224959588, 249062401, 337439382, 426964116, 498124802, 674878764, 747187203, 996249604, 1494374406, 1743436807, 2988748812, 3486873614, 5230310421, 6973747228, 10460620842, 20921241684]

約数ペア:

[(1, 20921241684), (2, 10460620842), (3, 6973747228), (4, 5230310421), (6, 3486873614), (7, 2988748812), (12, 1743436807), (14, 1494374406), (21, 996249604), (28, 747187203), (31, 674878764), (42, 498124802), (49, 426964116), (62, 337439382), (84, 249062401), (93, 224959588), (98, 213482058), (124, 168719691), (147, 142321372), (186, 112479794), (196, 106741029), (217, 96411252), (294, 71160686), (372, 56239897), (431, 48541164), (434, 48205626), (588, 35580343), (651, 32137084), (862, 24270582), (868, 24102813), (1293, 16180388), (1302, 16068542), (1519, 13773036), (1724, 12135291), (2586, 8090194), (2604, 8034271), (2663, 7856268), (3017, 6934452), (3038, 6886518), (4557, 4591012), (5172, 4045097), (5326, 3928134), (6034, 3467226), (6076, 3443259), (7989, 2618756), (9051, 2311484), (9114, 2295506), (10652, 1964067), (12068, 1733613), (13361, 1565844), (15978, 1309378), (18102, 1155742), (18228, 1147753), (18641, 1122324), (21119, 990636), (26722, 782922), (31956, 654689), (36204, 577871), (37282, 561162), (40083, 521948), (42238, 495318), (53444, 391461), (55923, 374108), (63357, 330212), (74564, 280581), (80166, 260974), (82553, 253428), (84476, 247659), (93527, 223692), (111846, 187054), (126714, 165106), (130487, 160332)]