20216563348

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{19489}}^1$

素因数の和:19736

約数の個数: 48

約数和(自身を含む): 37410197440

約数和(自身を除く): 17193634092

約数列:

[1, 2, 4, 37, 43, 74, 86, 148, 163, 172, 326, 652, 1591, 3182, 6031, 6364, 7009, 12062, 14018, 19489, 24124, 28036, 38978, 77956, 259333, 518666, 721093, 838027, 1037332, 1442186, 1676054, 2884372, 3176707, 3352108, 6353414, 12706828, 31006999, 62013998, 117538159, 124027996, 136598401, 235076318, 273196802, 470152636, 546393604, 5054140837, 10108281674, 20216563348]

約数ペア:

[(1, 20216563348), (2, 10108281674), (4, 5054140837), (37, 546393604), (43, 470152636), (74, 273196802), (86, 235076318), (148, 136598401), (163, 124027996), (172, 117538159), (326, 62013998), (652, 31006999), (1591, 12706828), (3182, 6353414), (6031, 3352108), (6364, 3176707), (7009, 2884372), (12062, 1676054), (14018, 1442186), (19489, 1037332), (24124, 838027), (28036, 721093), (38978, 518666), (77956, 259333)]