19587145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 26687232

約数和(自身を除く): 7100087

約数列:

[1, 5, 17, 23, 43, 85, 115, 215, 233, 391, 731, 989, 1165, 1955, 3655, 3961, 4945, 5359, 10019, 16813, 19805, 26795, 50095, 84065, 91103, 170323, 230437, 455515, 851615, 1152185, 3917429, 19587145]

約数ペア:

[(1, 19587145), (5, 3917429), (17, 1152185), (23, 851615), (43, 455515), (85, 230437), (115, 170323), (215, 91103), (233, 84065), (391, 50095), (731, 26795), (989, 19805), (1165, 16813), (1955, 10019), (3655, 5359), (3961, 4945)]