213778899

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1483}}^1$

素因数の和:1792

約数の個数: 32

約数和(自身を含む): 334790400

約数和(自身を除く): 121011501

約数列:

[1, 3, 9, 19, 27, 57, 171, 281, 513, 843, 1483, 2529, 4449, 5339, 7587, 13347, 16017, 28177, 40041, 48051, 84531, 144153, 253593, 416723, 760779, 1250169, 3750507, 7917737, 11251521, 23753211, 71259633, 213778899]

約数ペア:

[(1, 213778899), (3, 71259633), (9, 23753211), (19, 11251521), (27, 7917737), (57, 3750507), (171, 1250169), (281, 760779), (513, 416723), (843, 253593), (1483, 144153), (2529, 84531), (4449, 48051), (5339, 40041), (7587, 28177), (13347, 16017)]