209890188

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{306857}}^1$

素因数の和:306886

約数の個数: 36

約数和(自身を含む): 558481560

約数和(自身を除く): 348591372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 306857, 613714, 920571, 1227428, 1841142, 2761713, 3682284, 5523426, 5830283, 11046852, 11660566, 17490849, 23321132, 34981698, 52472547, 69963396, 104945094, 209890188]

約数ペア:

[(1, 209890188), (2, 104945094), (3, 69963396), (4, 52472547), (6, 34981698), (9, 23321132), (12, 17490849), (18, 11660566), (19, 11046852), (36, 5830283), (38, 5523426), (57, 3682284), (76, 2761713), (114, 1841142), (171, 1227428), (228, 920571), (342, 613714), (684, 306857)]