20850352

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:497

約数の個数: 40

約数和(自身を含む): 42156032

約数和(自身を除く): 21305680

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 127, 248, 254, 331, 496, 508, 662, 1016, 1324, 2032, 2648, 3937, 5296, 7874, 10261, 15748, 20522, 31496, 41044, 42037, 62992, 82088, 84074, 164176, 168148, 336296, 672592, 1303147, 2606294, 5212588, 10425176, 20850352]

約数ペア:

[(1, 20850352), (2, 10425176), (4, 5212588), (8, 2606294), (16, 1303147), (31, 672592), (62, 336296), (124, 168148), (127, 164176), (248, 84074), (254, 82088), (331, 62992), (496, 42037), (508, 41044), (662, 31496), (1016, 20522), (1324, 15748), (2032, 10261), (2648, 7874), (3937, 5296)]