20656365

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3271}}^1$

素因数の和:3700

約数の個数: 16

約数和(自身を含む): 33138816

約数和(自身を除く): 12482451

約数列:

[1, 3, 5, 15, 421, 1263, 2105, 3271, 6315, 9813, 16355, 49065, 1377091, 4131273, 6885455, 20656365]

約数ペア:

[(1, 20656365), (3, 6885455), (5, 4131273), (15, 1377091), (421, 49065), (1263, 16355), (2105, 9813), (3271, 6315)]