18944685

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1613}}^1$

素因数の和:1659

約数の個数: 40

約数和(自身を含む): 35152920

約数和(自身を除く): 16208235

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 261, 405, 435, 783, 1305, 1613, 2349, 3915, 4839, 8065, 11745, 14517, 24195, 43551, 46777, 72585, 130653, 140331, 217755, 233885, 420993, 653265, 701655, 1262979, 2104965, 3788937, 6314895, 18944685]

約数ペア:

[(1, 18944685), (3, 6314895), (5, 3788937), (9, 2104965), (15, 1262979), (27, 701655), (29, 653265), (45, 420993), (81, 233885), (87, 217755), (135, 140331), (145, 130653), (261, 72585), (405, 46777), (435, 43551), (783, 24195), (1305, 14517), (1613, 11745), (2349, 8065), (3915, 4839)]