18979695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 38076480

約数和(自身を除く): 19096785

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 89, 105, 267, 315, 445, 623, 677, 801, 1335, 1869, 2031, 3115, 3385, 4005, 4739, 5607, 6093, 9345, 10155, 14217, 23695, 28035, 30465, 42651, 60253, 71085, 180759, 213255, 301265, 421771, 542277, 903795, 1265313, 2108855, 2711385, 3795939, 6326565, 18979695]

約数ペア:

[(1, 18979695), (3, 6326565), (5, 3795939), (7, 2711385), (9, 2108855), (15, 1265313), (21, 903795), (35, 542277), (45, 421771), (63, 301265), (89, 213255), (105, 180759), (267, 71085), (315, 60253), (445, 42651), (623, 30465), (677, 28035), (801, 23695), (1335, 14217), (1869, 10155), (2031, 9345), (3115, 6093), (3385, 5607), (4005, 4739)]