221900528

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{338263}}^1$

素因数の和:338312

約数の個数: 20

約数和(自身を含む): 440419728

約数和(自身を除く): 218519200

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 338263, 676526, 1353052, 2706104, 5412208, 13868783, 27737566, 55475132, 110950264, 221900528]

約数ペア:

[(1, 221900528), (2, 110950264), (4, 55475132), (8, 27737566), (16, 13868783), (41, 5412208), (82, 2706104), (164, 1353052), (328, 676526), (656, 338263)]