260821491

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{122971}}^1$

素因数の和:123082

約数の個数: 16

約数和(自身を含む): 401380608

約数和(自身を除く): 140559117

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 122971, 368913, 860797, 2582391, 12420071, 37260213, 86940497, 260821491]

約数ペア:

[(1, 260821491), (3, 86940497), (7, 37260213), (21, 12420071), (101, 2582391), (303, 860797), (707, 368913), (2121, 122971)]