1278889779

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{65173}}^1$

素因数の和:65418

約数の個数: 16

約数和(自身を含む): 1768561664

約数和(自身を除く): 489671885

約数列:

[1, 3, 31, 93, 211, 633, 6541, 19623, 65173, 195519, 2020363, 6061089, 13751503, 41254509, 426296593, 1278889779]

約数ペア:

[(1, 1278889779), (3, 426296593), (31, 41254509), (93, 13751503), (211, 6061089), (633, 2020363), (6541, 195519), (19623, 65173)]