21490168310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8700473}}^1$

素因数の和:8700512

約数の個数: 32

約数和(自身を含む): 43850388960

約数和(自身を除く): 22360220650

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8700473, 17400946, 43502365, 87004730, 113106149, 165308987, 226212298, 330617974, 565530745, 826544935, 1131061490, 1653089870, 2149016831, 4298033662, 10745084155, 21490168310]

約数ペア:

[(1, 21490168310), (2, 10745084155), (5, 4298033662), (10, 2149016831), (13, 1653089870), (19, 1131061490), (26, 826544935), (38, 565530745), (65, 330617974), (95, 226212298), (130, 165308987), (190, 113106149), (247, 87004730), (494, 43502365), (1235, 17400946), (2470, 8700473)]