31877154

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{24943}}^1$

素因数の和:25022

約数の個数: 24

約数和(自身を含む): 70042752

約数和(自身を除く): 38165598

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 24943, 49886, 74829, 149658, 224487, 448974, 1770953, 3541906, 5312859, 10625718, 15938577, 31877154]

約数ペア:

[(1, 31877154), (2, 15938577), (3, 10625718), (6, 5312859), (9, 3541906), (18, 1770953), (71, 448974), (142, 224487), (213, 149658), (426, 74829), (639, 49886), (1278, 24943)]