20806788093

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1\times {\mathrm{4517}}^1$

素因数の和:4946

約数の個数: 64

約数和(自身を含む): 34975825920

約数和(自身を除く): 14169037827

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 359, 611, 987, 1077, 1833, 2513, 4277, 4517, 4667, 7539, 12831, 13551, 14001, 16873, 31619, 32669, 50619, 58721, 94857, 98007, 118111, 176163, 212299, 219349, 354333, 411047, 636897, 658047, 1233141, 1486093, 1535443, 1621603, 2759887, 4458279, 4606329, 4864809, 8279661, 11351221, 19319209, 21080839, 34053663, 57957627, 63242517, 76215341, 147565873, 228646023, 442697619, 533507387, 990799433, 1600522161, 2972398299, 6935596031, 20806788093]

約数ペア:

[(1, 20806788093), (3, 6935596031), (7, 2972398299), (13, 1600522161), (21, 990799433), (39, 533507387), (47, 442697619), (91, 228646023), (141, 147565873), (273, 76215341), (329, 63242517), (359, 57957627), (611, 34053663), (987, 21080839), (1077, 19319209), (1833, 11351221), (2513, 8279661), (4277, 4864809), (4517, 4606329), (4667, 4458279), (7539, 2759887), (12831, 1621603), (13551, 1535443), (14001, 1486093), (16873, 1233141), (31619, 658047), (32669, 636897), (50619, 411047), (58721, 354333), (94857, 219349), (98007, 212299), (118111, 176163)]