21323540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152311}}^1$

素因数の和:152327

約数の個数: 24

約数和(自身を含む): 51176832

約数和(自身を除く): 29853292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152311, 304622, 609244, 761555, 1066177, 1523110, 2132354, 3046220, 4264708, 5330885, 10661770, 21323540]

約数ペア:

[(1, 21323540), (2, 10661770), (4, 5330885), (5, 4264708), (7, 3046220), (10, 2132354), (14, 1523110), (20, 1066177), (28, 761555), (35, 609244), (70, 304622), (140, 152311)]