557739721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{30307}}^1$

素因数の和:30564

約数の個数: 16

約数和(自身を含む): 698296320

約数和(自身を除く): 140556599

約数列:

[1, 7, 11, 77, 239, 1673, 2629, 18403, 30307, 212149, 333377, 2333639, 7243373, 50703611, 79677103, 557739721]

約数ペア:

[(1, 557739721), (7, 79677103), (11, 50703611), (77, 7243373), (239, 2333639), (1673, 333377), (2629, 212149), (18403, 30307)]