18389008

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:823

約数の個数: 40

約数和(自身を含む): 39167136

約数和(自身を除く): 20778128

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 163, 176, 326, 641, 652, 1282, 1304, 1793, 2564, 2608, 3586, 5128, 7051, 7172, 10256, 14102, 14344, 28204, 28688, 56408, 104483, 112816, 208966, 417932, 835864, 1149313, 1671728, 2298626, 4597252, 9194504, 18389008]

約数ペア:

[(1, 18389008), (2, 9194504), (4, 4597252), (8, 2298626), (11, 1671728), (16, 1149313), (22, 835864), (44, 417932), (88, 208966), (163, 112816), (176, 104483), (326, 56408), (641, 28688), (652, 28204), (1282, 14344), (1304, 14102), (1793, 10256), (2564, 7172), (2608, 7051), (3586, 5128)]