21000974416

素因数分解:

$2^4\times {\mathrm{47057}}^1\times {\mathrm{27893}}^1$

素因数の和:74958

約数の個数: 20

約数和(自身を含む): 40691711412

約数和(自身を除く): 19690736996

約数列:

[1, 2, 4, 8, 16, 27893, 47057, 55786, 94114, 111572, 188228, 223144, 376456, 446288, 752912, 1312560901, 2625121802, 5250243604, 10500487208, 21000974416]

約数ペア:

[(1, 21000974416), (2, 10500487208), (4, 5250243604), (8, 2625121802), (16, 1312560901), (27893, 752912), (47057, 446288), (55786, 376456), (94114, 223144), (111572, 188228)]