1221915

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2$

素因数の和:143

約数の個数: 24

約数和(自身を含む): 2061360

約数和(自身を除く): 839445

約数列:

[1, 3, 5, 15, 29, 53, 87, 145, 159, 265, 435, 795, 1537, 2809, 4611, 7685, 8427, 14045, 23055, 42135, 81461, 244383, 407305, 1221915]

約数ペア:

[(1, 1221915), (3, 407305), (5, 244383), (15, 81461), (29, 42135), (53, 23055), (87, 14045), (145, 8427), (159, 7685), (265, 4611), (435, 2809), (795, 1537)]