78955989

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 122763264

約数和(自身を除く): 43807275

約数列:

[1, 3, 7, 21, 103, 173, 211, 309, 519, 633, 721, 1211, 1477, 2163, 3633, 4431, 17819, 21733, 36503, 53457, 65199, 109509, 124733, 152131, 255521, 374199, 456393, 766563, 3759809, 11279427, 26318663, 78955989]

約数ペア:

[(1, 78955989), (3, 26318663), (7, 11279427), (21, 3759809), (103, 766563), (173, 456393), (211, 374199), (309, 255521), (519, 152131), (633, 124733), (721, 109509), (1211, 65199), (1477, 53457), (2163, 36503), (3633, 21733), (4431, 17819)]