20919496

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15473}}^1$

素因数の和:15505

約数の個数: 24

約数和(自身を含む): 42476130

約数和(自身を除く): 21556634

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15473, 30946, 61892, 123784, 201149, 402298, 804596, 1609192, 2614937, 5229874, 10459748, 20919496]

約数ペア:

[(1, 20919496), (2, 10459748), (4, 5229874), (8, 2614937), (13, 1609192), (26, 804596), (52, 402298), (104, 201149), (169, 123784), (338, 61892), (676, 30946), (1352, 15473)]