81972079

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 103856256

約数和(自身を除く): 21884177

約数列:

[1, 7, 17, 41, 53, 119, 287, 317, 371, 697, 901, 2173, 2219, 4879, 5389, 6307, 12997, 15211, 16801, 36941, 37723, 90979, 117607, 220949, 258587, 285617, 688841, 1546643, 1999319, 4821887, 11710297, 81972079]

約数ペア:

[(1, 81972079), (7, 11710297), (17, 4821887), (41, 1999319), (53, 1546643), (119, 688841), (287, 285617), (317, 258587), (371, 220949), (697, 117607), (901, 90979), (2173, 37723), (2219, 36941), (4879, 16801), (5389, 15211), (6307, 12997)]