20631615

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1103}}^1$

素因数の和:1183

約数の個数: 32

約数和(自身を含む): 34974720

約数和(自身を除く): 14343105

約数列:

[1, 3, 5, 15, 29, 43, 87, 129, 145, 215, 435, 645, 1103, 1247, 3309, 3741, 5515, 6235, 16545, 18705, 31987, 47429, 95961, 142287, 159935, 237145, 479805, 711435, 1375441, 4126323, 6877205, 20631615]

約数ペア:

[(1, 20631615), (3, 6877205), (5, 4126323), (15, 1375441), (29, 711435), (43, 479805), (87, 237145), (129, 159935), (145, 142287), (215, 95961), (435, 47429), (645, 31987), (1103, 18705), (1247, 16545), (3309, 6235), (3741, 5515)]