21226185

素因数分解:

$3^3\times 5^1\times {\mathrm{157231}}^1$

素因数の和:157245

約数の個数: 16

約数和(自身を含む): 37735680

約数和(自身を除く): 16509495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157231, 471693, 786155, 1415079, 2358465, 4245237, 7075395, 21226185]

約数ペア:

[(1, 21226185), (3, 7075395), (5, 4245237), (9, 2358465), (15, 1415079), (27, 786155), (45, 471693), (135, 157231)]