21070645

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4261}}^1$

素因数の和:4332

約数の個数: 16

約数和(自身を含む): 27004032

約数和(自身を除く): 5933387

約数列:

[1, 5, 23, 43, 115, 215, 989, 4261, 4945, 21305, 98003, 183223, 490015, 916115, 4214129, 21070645]

約数ペア:

[(1, 21070645), (5, 4214129), (23, 916115), (43, 490015), (115, 183223), (215, 98003), (989, 21305), (4261, 4945)]