13520913

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 22763520

約数和(自身を除く): 9242607

約数列:

[1, 3, 7, 19, 21, 47, 49, 57, 103, 133, 141, 147, 309, 329, 399, 721, 893, 931, 987, 1957, 2163, 2303, 2679, 2793, 4841, 5047, 5871, 6251, 6909, 13699, 14523, 15141, 18753, 33887, 41097, 43757, 91979, 95893, 101661, 131271, 237209, 275937, 287679, 643853, 711627, 1931559, 4506971, 13520913]

約数ペア:

[(1, 13520913), (3, 4506971), (7, 1931559), (19, 711627), (21, 643853), (47, 287679), (49, 275937), (57, 237209), (103, 131271), (133, 101661), (141, 95893), (147, 91979), (309, 43757), (329, 41097), (399, 33887), (721, 18753), (893, 15141), (931, 14523), (987, 13699), (1957, 6909), (2163, 6251), (2303, 5871), (2679, 5047), (2793, 4841)]