21836420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37649}}^1$

素因数の和:37687

約数の個数: 24

約数和(自身を含む): 47439000

約数和(自身を除く): 25602580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37649, 75298, 150596, 188245, 376490, 752980, 1091821, 2183642, 4367284, 5459105, 10918210, 21836420]

約数ペア:

[(1, 21836420), (2, 10918210), (4, 5459105), (5, 4367284), (10, 2183642), (20, 1091821), (29, 752980), (58, 376490), (116, 188245), (145, 150596), (290, 75298), (580, 37649)]