21102056

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 40697640

約数和(自身を除く): 19595584

約数列:

[1, 2, 4, 8, 53, 106, 157, 212, 314, 317, 424, 628, 634, 1256, 1268, 2536, 8321, 16642, 16801, 33284, 33602, 49769, 66568, 67204, 99538, 134408, 199076, 398152, 2637757, 5275514, 10551028, 21102056]

約数ペア:

[(1, 21102056), (2, 10551028), (4, 5275514), (8, 2637757), (53, 398152), (106, 199076), (157, 134408), (212, 99538), (314, 67204), (317, 66568), (424, 49769), (628, 33602), (634, 33284), (1256, 16801), (1268, 16642), (2536, 8321)]