21807580

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{18481}}^1$

素因数の和:18549

約数の個数: 24

約数和(自身を含む): 46574640

約数和(自身を除く): 24767060

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 18481, 36962, 73924, 92405, 184810, 369620, 1090379, 2180758, 4361516, 5451895, 10903790, 21807580]

約数ペア:

[(1, 21807580), (2, 10903790), (4, 5451895), (5, 4361516), (10, 2180758), (20, 1090379), (59, 369620), (118, 184810), (236, 92405), (295, 73924), (590, 36962), (1180, 18481)]