16831420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4229}}^1$

素因数の和:4437

約数の個数: 24

約数和(自身を含む): 35532000

約数和(自身を除く): 18700580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4229, 8458, 16916, 21145, 42290, 84580, 841571, 1683142, 3366284, 4207855, 8415710, 16831420]

約数ペア:

[(1, 16831420), (2, 8415710), (4, 4207855), (5, 3366284), (10, 1683142), (20, 841571), (199, 84580), (398, 42290), (796, 21145), (995, 16916), (1990, 8458), (3980, 4229)]