21649545

素因数分解:

$3^3\times 5^1\times {\mathrm{160367}}^1$

素因数の和:160381

約数の個数: 16

約数和(自身を含む): 38488320

約数和(自身を除く): 16838775

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 160367, 481101, 801835, 1443303, 2405505, 4329909, 7216515, 21649545]

約数ペア:

[(1, 21649545), (3, 7216515), (5, 4329909), (9, 2405505), (15, 1443303), (27, 801835), (45, 481101), (135, 160367)]