21771632

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{22307}}^1$

素因数の和:22376

約数の個数: 20

約数和(自身を含む): 42875976

約数和(自身を除く): 21104344

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 22307, 44614, 89228, 178456, 356912, 1360727, 2721454, 5442908, 10885816, 21771632]

約数ペア:

[(1, 21771632), (2, 10885816), (4, 5442908), (8, 2721454), (16, 1360727), (61, 356912), (122, 178456), (244, 89228), (488, 44614), (976, 22307)]