20210172

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 49230720

約数和(自身を除く): 29020548

約数列:

[1, 2, 3, 4, 6, 12, 43, 53, 86, 106, 129, 159, 172, 212, 258, 318, 516, 636, 739, 1478, 2217, 2279, 2956, 4434, 4558, 6837, 8868, 9116, 13674, 27348, 31777, 39167, 63554, 78334, 95331, 117501, 127108, 156668, 190662, 235002, 381324, 470004, 1684181, 3368362, 5052543, 6736724, 10105086, 20210172]

約数ペア:

[(1, 20210172), (2, 10105086), (3, 6736724), (4, 5052543), (6, 3368362), (12, 1684181), (43, 470004), (53, 381324), (86, 235002), (106, 190662), (129, 156668), (159, 127108), (172, 117501), (212, 95331), (258, 78334), (318, 63554), (516, 39167), (636, 31777), (739, 27348), (1478, 13674), (2217, 9116), (2279, 8868), (2956, 6837), (4434, 4558)]