20512221758

素因数分解:

$2^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2213}}^1\times {\mathrm{4217}}^1$

素因数の和:6596

約数の個数: 32

約数和(自身を含む): 35412168384

約数和(自身を除く): 14899946626

約数列:

[1, 2, 7, 14, 157, 314, 1099, 2198, 2213, 4217, 4426, 8434, 15491, 29519, 30982, 59038, 347441, 662069, 694882, 1324138, 2432087, 4634483, 4864174, 9268966, 9332221, 18664442, 65325547, 130651094, 1465158697, 2930317394, 10256110879, 20512221758]

約数ペア:

[(1, 20512221758), (2, 10256110879), (7, 2930317394), (14, 1465158697), (157, 130651094), (314, 65325547), (1099, 18664442), (2198, 9332221), (2213, 9268966), (4217, 4864174), (4426, 4634483), (8434, 2432087), (15491, 1324138), (29519, 694882), (30982, 662069), (59038, 347441)]