21754760

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4813}}^1$

素因数の和:4937

約数の個数: 32

約数和(自身を含む): 49391640

約数和(自身を除く): 27636880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 4813, 9626, 19252, 24065, 38504, 48130, 96260, 192520, 543869, 1087738, 2175476, 2719345, 4350952, 5438690, 10877380, 21754760]

約数ペア:

[(1, 21754760), (2, 10877380), (4, 5438690), (5, 4350952), (8, 2719345), (10, 2175476), (20, 1087738), (40, 543869), (113, 192520), (226, 96260), (452, 48130), (565, 38504), (904, 24065), (1130, 19252), (2260, 9626), (4520, 4813)]