18827211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 29090880

約数和(自身を除く): 10263669

約数列:

[1, 3, 13, 17, 39, 51, 73, 219, 221, 389, 663, 949, 1167, 1241, 2847, 3723, 5057, 6613, 15171, 16133, 19839, 28397, 48399, 85191, 85969, 257907, 369161, 482749, 1107483, 1448247, 6275737, 18827211]

約数ペア:

[(1, 18827211), (3, 6275737), (13, 1448247), (17, 1107483), (39, 482749), (51, 369161), (73, 257907), (219, 85969), (221, 85191), (389, 48399), (663, 28397), (949, 19839), (1167, 16133), (1241, 15171), (2847, 6613), (3723, 5057)]