18972369

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{971}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 29719872

約数和(自身を除く): 10747503

約数列:

[1, 3, 9, 13, 39, 117, 167, 501, 971, 1503, 2171, 2913, 6513, 8739, 12623, 19539, 37869, 113607, 162157, 486471, 1459413, 2108041, 6324123, 18972369]

約数ペア:

[(1, 18972369), (3, 6324123), (9, 2108041), (13, 1459413), (39, 486471), (117, 162157), (167, 113607), (501, 37869), (971, 19539), (1503, 12623), (2171, 8739), (2913, 6513)]