399712918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{50329}}^1$

素因数の和:50380

約数の個数: 24

約数和(自身を含む): 690326280

約数和(自身を除く): 290613362

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 3971, 7942, 50329, 100658, 553619, 956251, 1107238, 1912502, 10518761, 18168769, 21037522, 36337538, 199856459, 399712918]

約数ペア:

[(1, 399712918), (2, 199856459), (11, 36337538), (19, 21037522), (22, 18168769), (38, 10518761), (209, 1912502), (361, 1107238), (418, 956251), (722, 553619), (3971, 100658), (7942, 50329)]