18290727

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 15674841

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 207, 273, 299, 483, 819, 897, 971, 1449, 2093, 2691, 2913, 6279, 6797, 8739, 12623, 18837, 20391, 22333, 37869, 61173, 66999, 88361, 113607, 156331, 200997, 265083, 290329, 468993, 795249, 870987, 1406979, 2032303, 2612961, 6096909, 18290727]

約数ペア:

[(1, 18290727), (3, 6096909), (7, 2612961), (9, 2032303), (13, 1406979), (21, 870987), (23, 795249), (39, 468993), (63, 290329), (69, 265083), (91, 200997), (117, 156331), (161, 113607), (207, 88361), (273, 66999), (299, 61173), (483, 37869), (819, 22333), (897, 20391), (971, 18837), (1449, 12623), (2093, 8739), (2691, 6797), (2913, 6279)]