18118917

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 28339200

約数和(自身を除く): 10220283

約数列:

[1, 3, 9, 23, 27, 69, 163, 179, 207, 489, 537, 621, 1467, 1611, 3749, 4117, 4401, 4833, 11247, 12351, 29177, 33741, 37053, 87531, 101223, 111159, 262593, 671071, 787779, 2013213, 6039639, 18118917]

約数ペア:

[(1, 18118917), (3, 6039639), (9, 2013213), (23, 787779), (27, 671071), (69, 262593), (163, 111159), (179, 101223), (207, 87531), (489, 37053), (537, 33741), (621, 29177), (1467, 12351), (1611, 11247), (3749, 4833), (4117, 4401)]