31480813

素因数分解:

$7^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:158

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 9645587

約数列:

[1, 7, 13, 23, 89, 91, 161, 169, 299, 623, 1157, 1183, 2047, 2093, 2197, 3887, 8099, 14329, 15041, 15379, 26611, 27209, 50531, 105287, 186277, 195533, 345943, 353717, 1368731, 2421601, 4497259, 31480813]

約数ペア:

[(1, 31480813), (7, 4497259), (13, 2421601), (23, 1368731), (89, 353717), (91, 345943), (161, 195533), (169, 186277), (299, 105287), (623, 50531), (1157, 27209), (1183, 26611), (2047, 15379), (2093, 15041), (2197, 14329), (3887, 8099)]