20194305

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13259775

約数列:

[1, 3, 5, 15, 43, 129, 131, 215, 239, 393, 645, 655, 717, 1195, 1965, 3585, 5633, 10277, 16899, 28165, 30831, 31309, 51385, 84495, 93927, 154155, 156545, 469635, 1346287, 4038861, 6731435, 20194305]

約数ペア:

[(1, 20194305), (3, 6731435), (5, 4038861), (15, 1346287), (43, 469635), (129, 156545), (131, 154155), (215, 93927), (239, 84495), (393, 51385), (645, 31309), (655, 30831), (717, 28165), (1195, 16899), (1965, 10277), (3585, 5633)]