20907372

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{857}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 30984468

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 107, 114, 214, 228, 321, 428, 642, 857, 1284, 1714, 2033, 2571, 3428, 4066, 5142, 6099, 8132, 10284, 12198, 16283, 24396, 32566, 48849, 65132, 91699, 97698, 183398, 195396, 275097, 366796, 550194, 1100388, 1742281, 3484562, 5226843, 6969124, 10453686, 20907372]

約数ペア:

[(1, 20907372), (2, 10453686), (3, 6969124), (4, 5226843), (6, 3484562), (12, 1742281), (19, 1100388), (38, 550194), (57, 366796), (76, 275097), (107, 195396), (114, 183398), (214, 97698), (228, 91699), (321, 65132), (428, 48849), (642, 32566), (857, 24396), (1284, 16283), (1714, 12198), (2033, 10284), (2571, 8132), (3428, 6099), (4066, 5142)]