18872656

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{683}}^1$

素因数の和:859

約数の個数: 40

約数和(自身を含む): 40202784

約数和(自身を除く): 21330128

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 157, 176, 314, 628, 683, 1256, 1366, 1727, 2512, 2732, 3454, 5464, 6908, 7513, 10928, 13816, 15026, 27632, 30052, 60104, 107231, 120208, 214462, 428924, 857848, 1179541, 1715696, 2359082, 4718164, 9436328, 18872656]

約数ペア:

[(1, 18872656), (2, 9436328), (4, 4718164), (8, 2359082), (11, 1715696), (16, 1179541), (22, 857848), (44, 428924), (88, 214462), (157, 120208), (176, 107231), (314, 60104), (628, 30052), (683, 27632), (1256, 15026), (1366, 13816), (1727, 10928), (2512, 7513), (2732, 6908), (3454, 5464)]