2021189225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{14969}}^1$

素因数の和:15481

約数の個数: 24

約数和(自身を含む): 2739869280

約数和(自身を除く): 718680055

約数列:

[1, 5, 11, 25, 55, 275, 491, 2455, 5401, 12275, 14969, 27005, 74845, 135025, 164659, 374225, 823295, 4116475, 7349779, 36748895, 80847569, 183744475, 404237845, 2021189225]

約数ペア:

[(1, 2021189225), (5, 404237845), (11, 183744475), (25, 80847569), (55, 36748895), (275, 7349779), (491, 4116475), (2455, 823295), (5401, 374225), (12275, 164659), (14969, 135025), (27005, 74845)]