18919836

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{40427}}^1$

素因数の和:40450

約数の個数: 36

約数和(自身を含む): 51505272

約数和(自身を除く): 32585436

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 40427, 80854, 121281, 161708, 242562, 363843, 485124, 525551, 727686, 1051102, 1455372, 1576653, 2102204, 3153306, 4729959, 6306612, 9459918, 18919836]

約数ペア:

[(1, 18919836), (2, 9459918), (3, 6306612), (4, 4729959), (6, 3153306), (9, 2102204), (12, 1576653), (13, 1455372), (18, 1051102), (26, 727686), (36, 525551), (39, 485124), (52, 363843), (78, 242562), (117, 161708), (156, 121281), (234, 80854), (468, 40427)]