31561221

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{6827}}^1$

素因数の和:6920

約数の個数: 16

約数和(自身を含む): 44573184

約数和(自身を除く): 13011963

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4623, 6827, 20481, 157021, 457409, 471063, 1372227, 10520407, 31561221]

約数ペア:

[(1, 31561221), (3, 10520407), (23, 1372227), (67, 471063), (69, 457409), (201, 157021), (1541, 20481), (4623, 6827)]