21253716

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 59125248

約数和(自身を除く): 37871532

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 191, 198, 281, 382, 396, 562, 573, 764, 843, 1124, 1146, 1686, 1719, 2101, 2292, 2529, 3091, 3372, 3438, 4202, 5058, 6182, 6303, 6876, 8404, 9273, 10116, 12364, 12606, 18546, 18909, 25212, 27819, 37092, 37818, 53671, 55638, 75636, 107342, 111276, 161013, 214684, 322026, 483039, 590381, 644052, 966078, 1180762, 1771143, 1932156, 2361524, 3542286, 5313429, 7084572, 10626858, 21253716]

約数ペア:

[(1, 21253716), (2, 10626858), (3, 7084572), (4, 5313429), (6, 3542286), (9, 2361524), (11, 1932156), (12, 1771143), (18, 1180762), (22, 966078), (33, 644052), (36, 590381), (44, 483039), (66, 322026), (99, 214684), (132, 161013), (191, 111276), (198, 107342), (281, 75636), (382, 55638), (396, 53671), (562, 37818), (573, 37092), (764, 27819), (843, 25212), (1124, 18909), (1146, 18546), (1686, 12606), (1719, 12364), (2101, 10116), (2292, 9273), (2529, 8404), (3091, 6876), (3372, 6303), (3438, 6182), (4202, 5058)]