18638724

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{733}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 47187392

約数和(自身を除く): 28548668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 163, 326, 489, 652, 733, 978, 1466, 1956, 2119, 2199, 2932, 4238, 4398, 6357, 8476, 8796, 9529, 12714, 19058, 25428, 28587, 38116, 57174, 114348, 119479, 238958, 358437, 477916, 716874, 1433748, 1553227, 3106454, 4659681, 6212908, 9319362, 18638724]

約数ペア:

[(1, 18638724), (2, 9319362), (3, 6212908), (4, 4659681), (6, 3106454), (12, 1553227), (13, 1433748), (26, 716874), (39, 477916), (52, 358437), (78, 238958), (156, 119479), (163, 114348), (326, 57174), (489, 38116), (652, 28587), (733, 25428), (978, 19058), (1466, 12714), (1956, 9529), (2119, 8796), (2199, 8476), (2932, 6357), (4238, 4398)]