21961836

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{281}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 60357024

約数和(自身を除く): 38395188

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 167, 234, 281, 334, 468, 501, 562, 668, 843, 1002, 1124, 1503, 1686, 2004, 2171, 2529, 3006, 3372, 3653, 4342, 5058, 6012, 6513, 7306, 8684, 10116, 10959, 13026, 14612, 19539, 21918, 26052, 32877, 39078, 43836, 46927, 65754, 78156, 93854, 131508, 140781, 187708, 281562, 422343, 563124, 610051, 844686, 1220102, 1689372, 1830153, 2440204, 3660306, 5490459, 7320612, 10980918, 21961836]

約数ペア:

[(1, 21961836), (2, 10980918), (3, 7320612), (4, 5490459), (6, 3660306), (9, 2440204), (12, 1830153), (13, 1689372), (18, 1220102), (26, 844686), (36, 610051), (39, 563124), (52, 422343), (78, 281562), (117, 187708), (156, 140781), (167, 131508), (234, 93854), (281, 78156), (334, 65754), (468, 46927), (501, 43836), (562, 39078), (668, 32877), (843, 26052), (1002, 21918), (1124, 19539), (1503, 14612), (1686, 13026), (2004, 10959), (2171, 10116), (2529, 8684), (3006, 7306), (3372, 6513), (3653, 6012), (4342, 5058)]