20021368

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 39114000

約数和(自身を除く): 19092632

約数列:

[1, 2, 4, 8, 29, 58, 116, 211, 232, 409, 422, 818, 844, 1636, 1688, 3272, 6119, 11861, 12238, 23722, 24476, 47444, 48952, 86299, 94888, 172598, 345196, 690392, 2502671, 5005342, 10010684, 20021368]

約数ペア:

[(1, 20021368), (2, 10010684), (4, 5005342), (8, 2502671), (29, 690392), (58, 345196), (116, 172598), (211, 94888), (232, 86299), (409, 48952), (422, 47444), (818, 24476), (844, 23722), (1636, 12238), (1688, 11861), (3272, 6119)]