21127834

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4003}}^1$

素因数の和:4054

約数の個数: 32

約数和(自身を含む): 40360320

約数和(自身を除く): 19232486

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 754, 2639, 4003, 5278, 8006, 28021, 52039, 56042, 104078, 116087, 232174, 364273, 728546, 812609, 1509131, 1625218, 3018262, 10563917, 21127834]

約数ペア:

[(1, 21127834), (2, 10563917), (7, 3018262), (13, 1625218), (14, 1509131), (26, 812609), (29, 728546), (58, 364273), (91, 232174), (182, 116087), (203, 104078), (377, 56042), (406, 52039), (754, 28021), (2639, 8006), (4003, 5278)]