21369200

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1362

約数の個数: 60

約数和(自身を含む): 52632048

約数和(自身を除く): 31262848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1303, 1640, 2050, 2606, 3280, 4100, 5212, 6515, 8200, 10424, 13030, 16400, 20848, 26060, 32575, 52120, 53423, 65150, 104240, 106846, 130300, 213692, 260600, 267115, 427384, 521200, 534230, 854768, 1068460, 1335575, 2136920, 2671150, 4273840, 5342300, 10684600, 21369200]

約数ペア:

[(1, 21369200), (2, 10684600), (4, 5342300), (5, 4273840), (8, 2671150), (10, 2136920), (16, 1335575), (20, 1068460), (25, 854768), (40, 534230), (41, 521200), (50, 427384), (80, 267115), (82, 260600), (100, 213692), (164, 130300), (200, 106846), (205, 104240), (328, 65150), (400, 53423), (410, 52120), (656, 32575), (820, 26060), (1025, 20848), (1303, 16400), (1640, 13030), (2050, 10424), (2606, 8200), (3280, 6515), (4100, 5212)]