21973180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64627}}^1$

素因数の和:64653

約数の個数: 24

約数和(自身を含む): 48858768

約数和(自身を除く): 26885588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 64627, 129254, 258508, 323135, 646270, 1098659, 1292540, 2197318, 4394636, 5493295, 10986590, 21973180]

約数ペア:

[(1, 21973180), (2, 10986590), (4, 5493295), (5, 4394636), (10, 2197318), (17, 1292540), (20, 1098659), (34, 646270), (68, 323135), (85, 258508), (170, 129254), (340, 64627)]