256421979

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{42461}}^1$

素因数の和:42539

約数の個数: 24

約数和(自身を含む): 410692464

約数和(自身を除く): 154270485

約数列:

[1, 3, 9, 11, 33, 61, 99, 183, 549, 671, 2013, 6039, 42461, 127383, 382149, 467071, 1401213, 2590121, 4203639, 7770363, 23311089, 28491331, 85473993, 256421979]

約数ペア:

[(1, 256421979), (3, 85473993), (9, 28491331), (11, 23311089), (33, 7770363), (61, 4203639), (99, 2590121), (183, 1401213), (549, 467071), (671, 382149), (2013, 127383), (6039, 42461)]