20154309

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{373}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 32169984

約数和(自身を除く): 12015675

約数列:

[1, 3, 7, 21, 31, 83, 93, 217, 249, 373, 581, 651, 1119, 1743, 2573, 2611, 7719, 7833, 11563, 18011, 30959, 34689, 54033, 80941, 92877, 216713, 242823, 650139, 959729, 2879187, 6718103, 20154309]

約数ペア:

[(1, 20154309), (3, 6718103), (7, 2879187), (21, 959729), (31, 650139), (83, 242823), (93, 216713), (217, 92877), (249, 80941), (373, 54033), (581, 34689), (651, 30959), (1119, 18011), (1743, 11563), (2573, 7833), (2611, 7719)]