18587709

素因数分解:

$3^2\times 7^2\times {\mathrm{113}}^1\times {\mathrm{373}}^1$

素因数の和:506

約数の個数: 36

約数和(自身を含む): 31593276

約数和(自身を除く): 13005567

約数列:

[1, 3, 7, 9, 21, 49, 63, 113, 147, 339, 373, 441, 791, 1017, 1119, 2373, 2611, 3357, 5537, 7119, 7833, 16611, 18277, 23499, 42149, 49833, 54831, 126447, 164493, 295043, 379341, 885129, 2065301, 2655387, 6195903, 18587709]

約数ペア:

[(1, 18587709), (3, 6195903), (7, 2655387), (9, 2065301), (21, 885129), (49, 379341), (63, 295043), (113, 164493), (147, 126447), (339, 54831), (373, 49833), (441, 42149), (791, 23499), (1017, 18277), (1119, 16611), (2373, 7833), (2611, 7119), (3357, 5537)]