221738565

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{869563}}^1$

素因数の和:869588

約数の個数: 16

約数和(自身を含む): 375651648

約数和(自身を除く): 153913083

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 869563, 2608689, 4347815, 13043445, 14782571, 44347713, 73912855, 221738565]

約数ペア:

[(1, 221738565), (3, 73912855), (5, 44347713), (15, 14782571), (17, 13043445), (51, 4347815), (85, 2608689), (255, 869563)]