21961904

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18803}}^1$

素因数の和:18884

約数の個数: 20

約数和(自身を含む): 43136376

約数和(自身を除く): 21174472

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18803, 37606, 75212, 150424, 300848, 1372619, 2745238, 5490476, 10980952, 21961904]

約数ペア:

[(1, 21961904), (2, 10980952), (4, 5490476), (8, 2745238), (16, 1372619), (73, 300848), (146, 150424), (292, 75212), (584, 37606), (1168, 18803)]