18104728

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{557}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 36158400

約数和(自身を除く): 18053672

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 239, 478, 557, 956, 1114, 1912, 2228, 4063, 4456, 8126, 9469, 16252, 18938, 32504, 37876, 75752, 133123, 266246, 532492, 1064984, 2263091, 4526182, 9052364, 18104728]

約数ペア:

[(1, 18104728), (2, 9052364), (4, 4526182), (8, 2263091), (17, 1064984), (34, 532492), (68, 266246), (136, 133123), (239, 75752), (478, 37876), (557, 32504), (956, 18938), (1114, 16252), (1912, 9469), (2228, 8126), (4063, 4456)]