21762520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41851}}^1$

素因数の和:41875

約数の個数: 32

約数和(自身を含む): 52733520

約数和(自身を除く): 30971000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41851, 83702, 167404, 209255, 334808, 418510, 544063, 837020, 1088126, 1674040, 2176252, 2720315, 4352504, 5440630, 10881260, 21762520]

約数ペア:

[(1, 21762520), (2, 10881260), (4, 5440630), (5, 4352504), (8, 2720315), (10, 2176252), (13, 1674040), (20, 1088126), (26, 837020), (40, 544063), (52, 418510), (65, 334808), (104, 209255), (130, 167404), (260, 83702), (520, 41851)]