821288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 1701000

約数和(自身を除く): 879712

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 149, 212, 298, 424, 596, 689, 1192, 1378, 1937, 2756, 3874, 5512, 7748, 7897, 15496, 15794, 31588, 63176, 102661, 205322, 410644, 821288]

約数ペア:

[(1, 821288), (2, 410644), (4, 205322), (8, 102661), (13, 63176), (26, 31588), (52, 15794), (53, 15496), (104, 7897), (106, 7748), (149, 5512), (212, 3874), (298, 2756), (424, 1937), (596, 1378), (689, 1192)]