21379460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34483}}^1$

素因数の和:34523

約数の個数: 24

約数和(自身を含む): 46346496

約数和(自身を除く): 24967036

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34483, 68966, 137932, 172415, 344830, 689660, 1068973, 2137946, 4275892, 5344865, 10689730, 21379460]

約数ペア:

[(1, 21379460), (2, 10689730), (4, 5344865), (5, 4275892), (10, 2137946), (20, 1068973), (31, 689660), (62, 344830), (124, 172415), (155, 137932), (310, 68966), (620, 34483)]