21003135

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32563}}^1$

素因数の和:32614

約数の個数: 16

約数和(自身を含む): 34387584

約数和(自身を除く): 13384449

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32563, 97689, 162815, 488445, 1400209, 4200627, 7001045, 21003135]

約数ペア:

[(1, 21003135), (3, 7001045), (5, 4200627), (15, 1400209), (43, 488445), (129, 162815), (215, 97689), (645, 32563)]