21395514

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509417}}^1$

素因数の和:509429

約数の個数: 16

約数和(自身を含む): 48904128

約数和(自身を除く): 27508614

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509417, 1018834, 1528251, 3056502, 3565919, 7131838, 10697757, 21395514]

約数ペア:

[(1, 21395514), (2, 10697757), (3, 7131838), (6, 3565919), (7, 3056502), (14, 1528251), (21, 1018834), (42, 509417)]