221471715

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{14929}}^1$

素因数の和:15003

約数の個数: 32

約数和(自身を含む): 378385920

約数和(自身を除く): 156914205

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 2967, 4945, 14835, 14929, 44787, 74645, 223935, 343367, 641947, 1030101, 1716835, 1925841, 3209735, 5150505, 9629205, 14764781, 44294343, 73823905, 221471715]

約数ペア:

[(1, 221471715), (3, 73823905), (5, 44294343), (15, 14764781), (23, 9629205), (43, 5150505), (69, 3209735), (115, 1925841), (129, 1716835), (215, 1030101), (345, 641947), (645, 343367), (989, 223935), (2967, 74645), (4945, 44787), (14835, 14929)]