21000762340

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10396417}}^1$

素因数の和:10396527

約数の個数: 24

約数和(自身を含む): 44538254712

約数和(自身を除く): 23537492372

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10396417, 20792834, 41585668, 51982085, 103964170, 207928340, 1050038117, 2100076234, 4200152468, 5250190585, 10500381170, 21000762340]

約数ペア:

[(1, 21000762340), (2, 10500381170), (4, 5250190585), (5, 4200152468), (10, 2100076234), (20, 1050038117), (101, 207928340), (202, 103964170), (404, 51982085), (505, 41585668), (1010, 20792834), (2020, 10396417)]