21140620

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2789}}^1$

素因数の和:3177

約数の個数: 24

約数和(自身を含む): 44528400

約数和(自身を除く): 23387780

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 2789, 3790, 5578, 7580, 11156, 13945, 27890, 55780, 1057031, 2114062, 4228124, 5285155, 10570310, 21140620]

約数ペア:

[(1, 21140620), (2, 10570310), (4, 5285155), (5, 4228124), (10, 2114062), (20, 1057031), (379, 55780), (758, 27890), (1516, 13945), (1895, 11156), (2789, 7580), (3790, 5578)]