21433215

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{13109}}^1$

素因数の和:13226

約数の個数: 16

約数和(自身を含む): 34610400

約数和(自身を除く): 13177185

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 13109, 39327, 65545, 196635, 1428881, 4286643, 7144405, 21433215]

約数ペア:

[(1, 21433215), (3, 7144405), (5, 4286643), (15, 1428881), (109, 196635), (327, 65545), (545, 39327), (1635, 13109)]