20931235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5279}}^1$

素因数の和:5358

約数の個数: 16

約数和(自身を含む): 27498240

約数和(自身を除く): 6567005

約数列:

[1, 5, 13, 61, 65, 305, 793, 3965, 5279, 26395, 68627, 322019, 343135, 1610095, 4186247, 20931235]

約数ペア:

[(1, 20931235), (5, 4186247), (13, 1610095), (61, 343135), (65, 322019), (305, 68627), (793, 26395), (3965, 5279)]