21653750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{1019}}^1$

素因数の和:1058

約数の個数: 40

約数和(自身を含む): 43017480

約数和(自身を除く): 21363730

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 625, 850, 1019, 1250, 2038, 2125, 4250, 5095, 10190, 10625, 17323, 21250, 25475, 34646, 50950, 86615, 127375, 173230, 254750, 433075, 636875, 866150, 1273750, 2165375, 4330750, 10826875, 21653750]

約数ペア:

[(1, 21653750), (2, 10826875), (5, 4330750), (10, 2165375), (17, 1273750), (25, 866150), (34, 636875), (50, 433075), (85, 254750), (125, 173230), (170, 127375), (250, 86615), (425, 50950), (625, 34646), (850, 25475), (1019, 21250), (1250, 17323), (2038, 10625), (2125, 10190), (4250, 5095)]