18922768

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{953}}^1$

素因数の和:1051

約数の個数: 40

約数和(自身を含む): 39392568

約数和(自身を除く): 20469800

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 73, 136, 146, 272, 292, 584, 953, 1168, 1241, 1906, 2482, 3812, 4964, 7624, 9928, 15248, 16201, 19856, 32402, 64804, 69569, 129608, 139138, 259216, 278276, 556552, 1113104, 1182673, 2365346, 4730692, 9461384, 18922768]

約数ペア:

[(1, 18922768), (2, 9461384), (4, 4730692), (8, 2365346), (16, 1182673), (17, 1113104), (34, 556552), (68, 278276), (73, 259216), (136, 139138), (146, 129608), (272, 69569), (292, 64804), (584, 32402), (953, 19856), (1168, 16201), (1241, 15248), (1906, 9928), (2482, 7624), (3812, 4964)]