21049070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10369}}^1$

素因数の和:10412

約数の個数: 32

約数和(自身を含む): 44798400

約数和(自身を除く): 23749330

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10369, 20738, 51845, 72583, 103690, 145166, 300701, 362915, 601402, 725830, 1503505, 2104907, 3007010, 4209814, 10524535, 21049070]

約数ペア:

[(1, 21049070), (2, 10524535), (5, 4209814), (7, 3007010), (10, 2104907), (14, 1503505), (29, 725830), (35, 601402), (58, 362915), (70, 300701), (145, 145166), (203, 103690), (290, 72583), (406, 51845), (1015, 20738), (2030, 10369)]