18505620868

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2195731}}^1$

素因数の和:2195792

約数の個数: 36

約数和(自身を含む): 38548270992

約数和(自身を除く): 20042650124

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 4214, 8428, 2195731, 4391462, 8782924, 15370117, 30740234, 61480468, 94416433, 107590819, 188832866, 215181638, 377665732, 430363276, 660915031, 1321830062, 2643660124, 4626405217, 9252810434, 18505620868]

約数ペア:

[(1, 18505620868), (2, 9252810434), (4, 4626405217), (7, 2643660124), (14, 1321830062), (28, 660915031), (43, 430363276), (49, 377665732), (86, 215181638), (98, 188832866), (172, 107590819), (196, 94416433), (301, 61480468), (602, 30740234), (1204, 15370117), (2107, 8782924), (4214, 4391462), (8428, 2195731)]