221686801

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{2621}}^1$

素因数の和:2952

約数の個数: 16

約数和(自身を含む): 260270208

約数和(自身を除く): 38583407

約数列:

[1, 7, 43, 281, 301, 1967, 2621, 12083, 18347, 84581, 112703, 736501, 788921, 5155507, 31669543, 221686801]

約数ペア:

[(1, 221686801), (7, 31669543), (43, 5155507), (281, 788921), (301, 736501), (1967, 112703), (2621, 84581), (12083, 18347)]