20152071

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:437

約数の個数: 40

約数和(自身を含む): 32582880

約数和(自身を除く): 12430809

約数列:

[1, 3, 9, 23, 27, 29, 69, 81, 87, 207, 261, 373, 621, 667, 783, 1119, 1863, 2001, 2349, 3357, 6003, 8579, 10071, 10817, 18009, 25737, 30213, 32451, 54027, 77211, 97353, 231633, 248791, 292059, 694899, 746373, 876177, 2239119, 6717357, 20152071]

約数ペア:

[(1, 20152071), (3, 6717357), (9, 2239119), (23, 876177), (27, 746373), (29, 694899), (69, 292059), (81, 248791), (87, 231633), (207, 97353), (261, 77211), (373, 54027), (621, 32451), (667, 30213), (783, 25737), (1119, 18009), (1863, 10817), (2001, 10071), (2349, 8579), (3357, 6003)]