20385918

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{17977}}^1$

素因数の和:17998

約数の個数: 40

約数和(自身を含む): 52208112

約数和(自身を除く): 31822194

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 17977, 35954, 53931, 107862, 125839, 161793, 251678, 323586, 377517, 485379, 755034, 970758, 1132551, 1456137, 2265102, 2912274, 3397653, 6795306, 10192959, 20385918]

約数ペア:

[(1, 20385918), (2, 10192959), (3, 6795306), (6, 3397653), (7, 2912274), (9, 2265102), (14, 1456137), (18, 1132551), (21, 970758), (27, 755034), (42, 485379), (54, 377517), (63, 323586), (81, 251678), (126, 161793), (162, 125839), (189, 107862), (378, 53931), (567, 35954), (1134, 17977)]