28419839

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 36188160

約数和(自身を除く): 7768321

約数列:

[1, 7, 19, 31, 61, 113, 133, 217, 427, 589, 791, 1159, 1891, 2147, 3503, 4123, 6893, 8113, 13237, 15029, 24521, 35929, 48251, 66557, 130967, 213683, 251503, 465899, 916769, 1495781, 4059977, 28419839]

約数ペア:

[(1, 28419839), (7, 4059977), (19, 1495781), (31, 916769), (61, 465899), (113, 251503), (133, 213683), (217, 130967), (427, 66557), (589, 48251), (791, 35929), (1159, 24521), (1891, 15029), (2147, 13237), (3503, 8113), (4123, 6893)]