18909051

素因数分解:

$3^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{419}}^1$

素因数の和:743

約数の個数: 24

約数和(自身を含む): 29494080

約数和(自身を除く): 10585029

約数列:

[1, 3, 7, 21, 49, 147, 307, 419, 921, 1257, 2149, 2933, 6447, 8799, 15043, 20531, 45129, 61593, 128633, 385899, 900431, 2701293, 6303017, 18909051]

約数ペア:

[(1, 18909051), (3, 6303017), (7, 2701293), (21, 900431), (49, 385899), (147, 128633), (307, 61593), (419, 45129), (921, 20531), (1257, 15043), (2149, 8799), (2933, 6447)]