20543325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{673}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 38110656

約数和(自身を除く): 17567331

約数列:

[1, 3, 5, 11, 15, 25, 33, 37, 55, 75, 111, 165, 185, 275, 407, 555, 673, 825, 925, 1221, 2019, 2035, 2775, 3365, 6105, 7403, 10095, 10175, 16825, 22209, 24901, 30525, 37015, 50475, 74703, 111045, 124505, 185075, 273911, 373515, 555225, 622525, 821733, 1369555, 1867575, 4108665, 6847775, 20543325]

約数ペア:

[(1, 20543325), (3, 6847775), (5, 4108665), (11, 1867575), (15, 1369555), (25, 821733), (33, 622525), (37, 555225), (55, 373515), (75, 273911), (111, 185075), (165, 124505), (185, 111045), (275, 74703), (407, 50475), (555, 37015), (673, 30525), (825, 24901), (925, 22209), (1221, 16825), (2019, 10175), (2035, 10095), (2775, 7403), (3365, 6105)]