21191824

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{35797}}^1$

素因数の和:35842

約数の個数: 20

約数和(自身を含む): 42170044

約数和(自身を除く): 20978220

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 35797, 71594, 143188, 286376, 572752, 1324489, 2648978, 5297956, 10595912, 21191824]

約数ペア:

[(1, 21191824), (2, 10595912), (4, 5297956), (8, 2648978), (16, 1324489), (37, 572752), (74, 286376), (148, 143188), (296, 71594), (592, 35797)]