18758781

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 28164864

約数和(自身を除く): 9406083

約数列:

[1, 3, 9, 47, 61, 141, 183, 423, 549, 727, 2181, 2867, 6543, 8601, 25803, 34169, 44347, 102507, 133041, 307521, 399123, 2084309, 6252927, 18758781]

約数ペア:

[(1, 18758781), (3, 6252927), (9, 2084309), (47, 399123), (61, 307521), (141, 133041), (183, 102507), (423, 44347), (549, 34169), (727, 25803), (2181, 8601), (2867, 6543)]