21007921634

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{5531}}^1$

素因数の和:5799

約数の個数: 64

約数和(自身を含む): 38555827200

約数和(自身を除く): 17547905566

約数列:

[1, 2, 7, 14, 19, 38, 109, 131, 133, 218, 262, 266, 763, 917, 1526, 1834, 2071, 2489, 4142, 4978, 5531, 11062, 14279, 14497, 17423, 28558, 28994, 34846, 38717, 77434, 99953, 105089, 199906, 210178, 271301, 542602, 602879, 724561, 735623, 1205758, 1449122, 1471246, 1899107, 3798214, 4220153, 5071927, 8440306, 10143854, 11454701, 13766659, 22909402, 27533318, 78977149, 80182907, 96366613, 157954298, 160365814, 192733226, 552840043, 1105680086, 1500565831, 3001131662, 10503960817, 21007921634]

約数ペア:

[(1, 21007921634), (2, 10503960817), (7, 3001131662), (14, 1500565831), (19, 1105680086), (38, 552840043), (109, 192733226), (131, 160365814), (133, 157954298), (218, 96366613), (262, 80182907), (266, 78977149), (763, 27533318), (917, 22909402), (1526, 13766659), (1834, 11454701), (2071, 10143854), (2489, 8440306), (4142, 5071927), (4978, 4220153), (5531, 3798214), (11062, 1899107), (14279, 1471246), (14497, 1449122), (17423, 1205758), (28558, 735623), (28994, 724561), (34846, 602879), (38717, 542602), (77434, 271301), (99953, 210178), (105089, 199906)]