19816245

素因数分解:

$3^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{433}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 35919576

約数和(自身を除く): 16103331

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 113, 135, 339, 405, 433, 565, 1017, 1299, 1695, 2165, 3051, 3897, 5085, 6495, 9153, 11691, 15255, 19485, 35073, 45765, 48929, 58455, 146787, 175365, 244645, 440361, 733935, 1321083, 2201805, 3963249, 6605415, 19816245]

約数ペア:

[(1, 19816245), (3, 6605415), (5, 3963249), (9, 2201805), (15, 1321083), (27, 733935), (45, 440361), (81, 244645), (113, 175365), (135, 146787), (339, 58455), (405, 48929), (433, 45765), (565, 35073), (1017, 19485), (1299, 15255), (1695, 11691), (2165, 9153), (3051, 6495), (3897, 5085)]