20578716

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9371}}^1$

素因数の和:9442

約数の個数: 36

約数和(自身を含む): 52876824

約数和(自身を除く): 32298108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9371, 18742, 28113, 37484, 56226, 84339, 112452, 168678, 337356, 571631, 1143262, 1714893, 2286524, 3429786, 5144679, 6859572, 10289358, 20578716]

約数ペア:

[(1, 20578716), (2, 10289358), (3, 6859572), (4, 5144679), (6, 3429786), (9, 2286524), (12, 1714893), (18, 1143262), (36, 571631), (61, 337356), (122, 168678), (183, 112452), (244, 84339), (366, 56226), (549, 37484), (732, 28113), (1098, 18742), (2196, 9371)]