20906392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4903}}^1$

素因数の和:4963

約数の個数: 32

約数和(自身を含む): 43253280

約数和(自身を除く): 22346888

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 4903, 9806, 19612, 39224, 63739, 127478, 201023, 254956, 402046, 509912, 804092, 1608184, 2613299, 5226598, 10453196, 20906392]

約数ペア:

[(1, 20906392), (2, 10453196), (4, 5226598), (8, 2613299), (13, 1608184), (26, 804092), (41, 509912), (52, 402046), (82, 254956), (104, 201023), (164, 127478), (328, 63739), (533, 39224), (1066, 19612), (2132, 9806), (4264, 4903)]