20890956

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1553}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 52214400

約数和(自身を除く): 31323444

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 59, 76, 114, 118, 177, 228, 236, 354, 708, 1121, 1553, 2242, 3106, 3363, 4484, 4659, 6212, 6726, 9318, 13452, 18636, 29507, 59014, 88521, 91627, 118028, 177042, 183254, 274881, 354084, 366508, 549762, 1099524, 1740913, 3481826, 5222739, 6963652, 10445478, 20890956]

約数ペア:

[(1, 20890956), (2, 10445478), (3, 6963652), (4, 5222739), (6, 3481826), (12, 1740913), (19, 1099524), (38, 549762), (57, 366508), (59, 354084), (76, 274881), (114, 183254), (118, 177042), (177, 118028), (228, 91627), (236, 88521), (354, 59014), (708, 29507), (1121, 18636), (1553, 13452), (2242, 9318), (3106, 6726), (3363, 6212), (4484, 4659)]