20012697

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 31248000

約数和(自身を除く): 11235303

約数列:

[1, 3, 9, 27, 29, 61, 87, 183, 261, 419, 549, 783, 1257, 1647, 1769, 3771, 5307, 11313, 12151, 15921, 25559, 36453, 47763, 76677, 109359, 230031, 328077, 690093, 741211, 2223633, 6670899, 20012697]

約数ペア:

[(1, 20012697), (3, 6670899), (9, 2223633), (27, 741211), (29, 690093), (61, 328077), (87, 230031), (183, 109359), (261, 76677), (419, 47763), (549, 36453), (783, 25559), (1257, 15921), (1647, 12151), (1769, 11313), (3771, 5307)]