21398090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7109}}^1$

素因数の和:7166

約数の個数: 32

約数和(自身を含む): 45048960

約数和(自身を除く): 23650870

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 215, 301, 430, 602, 1505, 3010, 7109, 14218, 35545, 49763, 71090, 99526, 248815, 305687, 497630, 611374, 1528435, 2139809, 3056870, 4279618, 10699045, 21398090]

約数ペア:

[(1, 21398090), (2, 10699045), (5, 4279618), (7, 3056870), (10, 2139809), (14, 1528435), (35, 611374), (43, 497630), (70, 305687), (86, 248815), (215, 99526), (301, 71090), (430, 49763), (602, 35545), (1505, 14218), (3010, 7109)]