18690536

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 36858240

約数和(自身を除く): 18167704

約数列:

[1, 2, 4, 8, 23, 46, 92, 157, 184, 314, 628, 647, 1256, 1294, 2588, 3611, 5176, 7222, 14444, 14881, 28888, 29762, 59524, 101579, 119048, 203158, 406316, 812632, 2336317, 4672634, 9345268, 18690536]

約数ペア:

[(1, 18690536), (2, 9345268), (4, 4672634), (8, 2336317), (23, 812632), (46, 406316), (92, 203158), (157, 119048), (184, 101579), (314, 59524), (628, 29762), (647, 28888), (1256, 14881), (1294, 14444), (2588, 7222), (3611, 5176)]