21632570

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18284230

約数列:

[1, 2, 5, 10, 79, 139, 158, 197, 278, 394, 395, 695, 790, 985, 1390, 1970, 10981, 15563, 21962, 27383, 31126, 54766, 54905, 77815, 109810, 136915, 155630, 273830, 2163257, 4326514, 10816285, 21632570]

約数ペア:

[(1, 21632570), (2, 10816285), (5, 4326514), (10, 2163257), (79, 273830), (139, 155630), (158, 136915), (197, 109810), (278, 77815), (394, 54905), (395, 54766), (695, 31126), (790, 27383), (985, 21962), (1390, 15563), (1970, 10981)]