21134554

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16121126

約数列:

[1, 2, 7, 14, 79, 97, 158, 194, 197, 394, 553, 679, 1106, 1358, 1379, 2758, 7663, 15326, 15563, 19109, 31126, 38218, 53641, 107282, 108941, 133763, 217882, 267526, 1509611, 3019222, 10567277, 21134554]

約数ペア:

[(1, 21134554), (2, 10567277), (7, 3019222), (14, 1509611), (79, 267526), (97, 217882), (158, 133763), (194, 108941), (197, 107282), (394, 53641), (553, 38218), (679, 31126), (1106, 19109), (1358, 15563), (1379, 15326), (2758, 7663)]