21035658

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1249}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 48240000

約数和(自身を除く): 27204342

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 401, 802, 1203, 1249, 2406, 2498, 2807, 3747, 5614, 7494, 8421, 8743, 16842, 17486, 26229, 52458, 500849, 1001698, 1502547, 3005094, 3505943, 7011886, 10517829, 21035658]

約数ペア:

[(1, 21035658), (2, 10517829), (3, 7011886), (6, 3505943), (7, 3005094), (14, 1502547), (21, 1001698), (42, 500849), (401, 52458), (802, 26229), (1203, 17486), (1249, 16842), (2406, 8743), (2498, 8421), (2807, 7494), (3747, 5614)]