21289670

素因数分解:

$2^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{5801}}^1$

素因数の和:6175

約数の個数: 16

約数和(自身を含む): 38432448

約数和(自身を除く): 17142778

約数列:

[1, 2, 5, 10, 367, 734, 1835, 3670, 5801, 11602, 29005, 58010, 2128967, 4257934, 10644835, 21289670]

約数ペア:

[(1, 21289670), (2, 10644835), (5, 4257934), (10, 2128967), (367, 58010), (734, 29005), (1835, 11602), (3670, 5801)]