20798415

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42017}}^1$

素因数の和:42039

約数の個数: 24

約数和(自身を含む): 39328848

約数和(自身を除く): 18530433

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42017, 126051, 210085, 378153, 462187, 630255, 1386561, 1890765, 2310935, 4159683, 6932805, 20798415]

約数ペア:

[(1, 20798415), (3, 6932805), (5, 4159683), (9, 2310935), (11, 1890765), (15, 1386561), (33, 630255), (45, 462187), (55, 378153), (99, 210085), (165, 126051), (495, 42017)]