21088545

素因数分解:

$3^1\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1439}}^1$

素因数の和:2424

約数の個数: 16

約数和(自身を含む): 33799680

約数和(自身を除く): 12711135

約数列:

[1, 3, 5, 15, 977, 1439, 2931, 4317, 4885, 7195, 14655, 21585, 1405903, 4217709, 7029515, 21088545]

約数ペア:

[(1, 21088545), (3, 7029515), (5, 4217709), (15, 1405903), (977, 21585), (1439, 14655), (2931, 7195), (4317, 4885)]