21371045

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1709}}^1$

素因数の和:1816

約数の個数: 16

約数和(自身を含む): 26717040

約数和(自身を除く): 5345995

約数列:

[1, 5, 41, 61, 205, 305, 1709, 2501, 8545, 12505, 70069, 104249, 350345, 521245, 4274209, 21371045]

約数ペア:

[(1, 21371045), (5, 4274209), (41, 521245), (61, 350345), (205, 104249), (305, 70069), (1709, 12505), (2501, 8545)]