28021635

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{13249}}^1$

素因数の和:13307

約数の個数: 24

約数和(自身を含む): 49608000

約数和(自身を除く): 21586365

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 13249, 39747, 66245, 119241, 198735, 596205, 622703, 1868109, 3113515, 5604327, 9340545, 28021635]

約数ペア:

[(1, 28021635), (3, 9340545), (5, 5604327), (9, 3113515), (15, 1868109), (45, 622703), (47, 596205), (141, 198735), (235, 119241), (423, 66245), (705, 39747), (2115, 13249)]