21484845

素因数分解:

$3^5\times 5^1\times {\mathrm{17683}}^1$

素因数の和:17703

約数の個数: 24

約数和(自身を含む): 38621856

約数和(自身を除く): 17137011

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17683, 53049, 88415, 159147, 265245, 477441, 795735, 1432323, 2387205, 4296969, 7161615, 21484845]

約数ペア:

[(1, 21484845), (3, 7161615), (5, 4296969), (9, 2387205), (15, 1432323), (27, 795735), (45, 477441), (81, 265245), (135, 159147), (243, 88415), (405, 53049), (1215, 17683)]