18300156903

素因数分解:

$3^4\times 7^1\times {\mathrm{1249}}^1\times {\mathrm{25841}}^1$

素因数の和:27109

約数の個数: 40

約数和(自身を含む): 31268820000

約数和(自身を除く): 12968663097

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1249, 3747, 8743, 11241, 25841, 26229, 33723, 77523, 78687, 101169, 180887, 232569, 236061, 542661, 697707, 708183, 1627983, 2093121, 4883949, 14651847, 32275409, 96826227, 225927863, 290478681, 677783589, 871436043, 2033350767, 2614308129, 6100052301, 18300156903]

約数ペア:

[(1, 18300156903), (3, 6100052301), (7, 2614308129), (9, 2033350767), (21, 871436043), (27, 677783589), (63, 290478681), (81, 225927863), (189, 96826227), (567, 32275409), (1249, 14651847), (3747, 4883949), (8743, 2093121), (11241, 1627983), (25841, 708183), (26229, 697707), (33723, 542661), (77523, 236061), (78687, 232569), (101169, 180887)]