21093285

素因数分解:

$3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{5189}}^1$

素因数の和:5468

約数の個数: 16

約数和(自身を含む): 33880320

約数和(自身を除く): 12787035

約数列:

[1, 3, 5, 15, 271, 813, 1355, 4065, 5189, 15567, 25945, 77835, 1406219, 4218657, 7031095, 21093285]

約数ペア:

[(1, 21093285), (3, 7031095), (5, 4218657), (15, 1406219), (271, 77835), (813, 25945), (1355, 15567), (4065, 5189)]