21980450

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{7451}}^1$

素因数の和:7522

約数の個数: 24

約数和(自身を含む): 41582160

約数和(自身を除く): 19601710

約数列:

[1, 2, 5, 10, 25, 50, 59, 118, 295, 590, 1475, 2950, 7451, 14902, 37255, 74510, 186275, 372550, 439609, 879218, 2198045, 4396090, 10990225, 21980450]

約数ペア:

[(1, 21980450), (2, 10990225), (5, 4396090), (10, 2198045), (25, 879218), (50, 439609), (59, 372550), (118, 186275), (295, 74510), (590, 37255), (1475, 14902), (2950, 7451)]