20565710985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3821}}^1\times {\mathrm{21107}}^1$

素因数の和:24953

約数の個数: 32

約数和(自身を含む): 34851503232

約数和(自身を除く): 14285792247

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 3821, 11463, 19105, 21107, 57315, 63321, 64957, 105535, 194871, 316605, 324785, 358819, 974355, 1076457, 1794095, 5382285, 80649847, 241949541, 403249235, 1209747705, 1371047399, 4113142197, 6855236995, 20565710985]

約数ペア:

[(1, 20565710985), (3, 6855236995), (5, 4113142197), (15, 1371047399), (17, 1209747705), (51, 403249235), (85, 241949541), (255, 80649847), (3821, 5382285), (11463, 1794095), (19105, 1076457), (21107, 974355), (57315, 358819), (63321, 324785), (64957, 316605), (105535, 194871)]