21085955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{3583}}^1$

素因数の和:3706

約数の個数: 16

約数和(自身を含む): 27869184

約数和(自身を除く): 6783229

約数列:

[1, 5, 11, 55, 107, 535, 1177, 3583, 5885, 17915, 39413, 197065, 383381, 1916905, 4217191, 21085955]

約数ペア:

[(1, 21085955), (5, 4217191), (11, 1916905), (55, 383381), (107, 197065), (535, 39413), (1177, 17915), (3583, 5885)]