21476077

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{541}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 25287552

約数和(自身を除く): 3811475

約数列:

[1, 7, 53, 107, 371, 541, 749, 3787, 5671, 28673, 39697, 57887, 200711, 405209, 3068011, 21476077]

約数ペア:

[(1, 21476077), (7, 3068011), (53, 405209), (107, 200711), (371, 57887), (541, 39697), (749, 28673), (3787, 5671)]