21965224

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{433}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 43825320

約数和(自身を除く): 21860096

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 373, 433, 746, 866, 1492, 1732, 2984, 3464, 6341, 7361, 12682, 14722, 25364, 29444, 50728, 58888, 161509, 323018, 646036, 1292072, 2745653, 5491306, 10982612, 21965224]

約数ペア:

[(1, 21965224), (2, 10982612), (4, 5491306), (8, 2745653), (17, 1292072), (34, 646036), (68, 323018), (136, 161509), (373, 58888), (433, 50728), (746, 29444), (866, 25364), (1492, 14722), (1732, 12682), (2984, 7361), (3464, 6341)]