21309135

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34649}}^1$

素因数の和:34698

約数の個数: 16

約数和(自身を含む): 34927200

約数和(自身を除く): 13618065

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34649, 103947, 173245, 519735, 1420609, 4261827, 7103045, 21309135]

約数ペア:

[(1, 21309135), (3, 7103045), (5, 4261827), (15, 1420609), (41, 519735), (123, 173245), (205, 103947), (615, 34649)]