20161269

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{421}}^1$

素因数の和:757

約数の個数: 24

約数和(自身を含む): 31006872

約数和(自身を除く): 10845603

約数列:

[1, 3, 9, 17, 51, 153, 313, 421, 939, 1263, 2817, 3789, 5321, 7157, 15963, 21471, 47889, 64413, 131773, 395319, 1185957, 2240141, 6720423, 20161269]

約数ペア:

[(1, 20161269), (3, 6720423), (9, 2240141), (17, 1185957), (51, 395319), (153, 131773), (313, 64413), (421, 47889), (939, 21471), (1263, 15963), (2817, 7157), (3789, 5321)]