2217921808

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{997267}}^1$

素因数の和:997414

約数の個数: 20

約数和(自身を含む): 4328143120

約数和(自身を除く): 2110221312

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 997267, 1994534, 3989068, 7978136, 15956272, 138620113, 277240226, 554480452, 1108960904, 2217921808]

約数ペア:

[(1, 2217921808), (2, 1108960904), (4, 554480452), (8, 277240226), (16, 138620113), (139, 15956272), (278, 7978136), (556, 3989068), (1112, 1994534), (2224, 997267)]