18888464

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1231}}^1$

素因数の和:1383

約数の個数: 40

約数和(自身を含む): 42163968

約数和(自身を除く): 23275504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1231, 1918, 2192, 2462, 3836, 4924, 7672, 8617, 9848, 15344, 17234, 19696, 34468, 68936, 137872, 168647, 337294, 674588, 1180529, 1349176, 2361058, 2698352, 4722116, 9444232, 18888464]

約数ペア:

[(1, 18888464), (2, 9444232), (4, 4722116), (7, 2698352), (8, 2361058), (14, 1349176), (16, 1180529), (28, 674588), (56, 337294), (112, 168647), (137, 137872), (274, 68936), (548, 34468), (959, 19696), (1096, 17234), (1231, 15344), (1918, 9848), (2192, 8617), (2462, 7672), (3836, 4924)]