18811286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 13364074

約数列:

[1, 2, 13, 23, 26, 46, 83, 166, 299, 379, 598, 758, 1079, 1909, 2158, 3818, 4927, 8717, 9854, 17434, 24817, 31457, 49634, 62914, 113321, 226642, 408941, 723511, 817882, 1447022, 9405643, 18811286]

約数ペア:

[(1, 18811286), (2, 9405643), (13, 1447022), (23, 817882), (26, 723511), (46, 408941), (83, 226642), (166, 113321), (299, 62914), (379, 49634), (598, 31457), (758, 24817), (1079, 17434), (1909, 9854), (2158, 8717), (3818, 4927)]