21464595

素因数分解:

$3^4\times 5^1\times {\mathrm{52999}}^1$

素因数の和:53016

約数の個数: 20

約数和(自身を含む): 38478000

約数和(自身を除く): 17013405

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 52999, 158997, 264995, 476991, 794985, 1430973, 2384955, 4292919, 7154865, 21464595]

約数ペア:

[(1, 21464595), (3, 7154865), (5, 4292919), (9, 2384955), (15, 1430973), (27, 794985), (45, 476991), (81, 264995), (135, 158997), (405, 52999)]