18967508

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 41368320

約数和(自身を除く): 22400812

約数列:

[1, 2, 4, 7, 14, 28, 29, 47, 49, 58, 71, 94, 98, 116, 142, 188, 196, 203, 284, 329, 406, 497, 658, 812, 994, 1316, 1363, 1421, 1988, 2059, 2303, 2726, 2842, 3337, 3479, 4118, 4606, 5452, 5684, 6674, 6958, 8236, 9212, 9541, 13348, 13916, 14413, 19082, 23359, 28826, 38164, 46718, 57652, 66787, 93436, 96773, 100891, 133574, 163513, 193546, 201782, 267148, 327026, 387092, 403564, 654052, 677411, 1354822, 2709644, 4741877, 9483754, 18967508]

約数ペア:

[(1, 18967508), (2, 9483754), (4, 4741877), (7, 2709644), (14, 1354822), (28, 677411), (29, 654052), (47, 403564), (49, 387092), (58, 327026), (71, 267148), (94, 201782), (98, 193546), (116, 163513), (142, 133574), (188, 100891), (196, 96773), (203, 93436), (284, 66787), (329, 57652), (406, 46718), (497, 38164), (658, 28826), (812, 23359), (994, 19082), (1316, 14413), (1363, 13916), (1421, 13348), (1988, 9541), (2059, 9212), (2303, 8236), (2726, 6958), (2842, 6674), (3337, 5684), (3479, 5452), (4118, 4606)]