20996326

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:808

約数の個数: 32

約数和(自身を含む): 36499680

約数和(自身を除く): 15503354

約数列:

[1, 2, 13, 17, 26, 34, 67, 134, 221, 442, 709, 871, 1139, 1418, 1742, 2278, 9217, 12053, 14807, 18434, 24106, 29614, 47503, 95006, 156689, 313378, 617539, 807551, 1235078, 1615102, 10498163, 20996326]

約数ペア:

[(1, 20996326), (2, 10498163), (13, 1615102), (17, 1235078), (26, 807551), (34, 617539), (67, 313378), (134, 156689), (221, 95006), (442, 47503), (709, 29614), (871, 24106), (1139, 18434), (1418, 14807), (1742, 12053), (2278, 9217)]