18387557

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:149

約数の個数: 32

約数和(自身を含む): 22063104

約数和(自身を除く): 3675547

約数列:

[1, 17, 23, 31, 37, 41, 391, 527, 629, 697, 713, 851, 943, 1147, 1271, 1517, 12121, 14467, 16031, 19499, 21607, 25789, 26381, 29233, 34891, 47027, 448477, 496961, 593147, 799459, 1081621, 18387557]

約数ペア:

[(1, 18387557), (17, 1081621), (23, 799459), (31, 593147), (37, 496961), (41, 448477), (391, 47027), (527, 34891), (629, 29233), (697, 26381), (713, 25789), (851, 21607), (943, 19499), (1147, 16031), (1271, 14467), (1517, 12121)]