18953151

素因数分解:

$3^1\times 7^3\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 29913600

約数和(自身を除く): 10960449

約数列:

[1, 3, 7, 21, 49, 113, 147, 163, 339, 343, 489, 791, 1029, 1141, 2373, 3423, 5537, 7987, 16611, 18419, 23961, 38759, 55257, 55909, 116277, 128933, 167727, 386799, 902531, 2707593, 6317717, 18953151]

約数ペア:

[(1, 18953151), (3, 6317717), (7, 2707593), (21, 902531), (49, 386799), (113, 167727), (147, 128933), (163, 116277), (339, 55909), (343, 55257), (489, 38759), (791, 23961), (1029, 18419), (1141, 16611), (2373, 7987), (3423, 5537)]