21228250

素因数分解:

$2^1\times 5^3\times {\mathrm{84913}}^1$

素因数の和:84930

約数の個数: 16

約数和(自身を含む): 39739752

約数和(自身を除く): 18511502

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 84913, 169826, 424565, 849130, 2122825, 4245650, 10614125, 21228250]

約数ペア:

[(1, 21228250), (2, 10614125), (5, 4245650), (10, 2122825), (25, 849130), (50, 424565), (125, 169826), (250, 84913)]