19912839

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{1669}}^1$

素因数の和:1810

約数の個数: 16

約数和(自身を含む): 27494880

約数和(自身を除く): 7582041

約数列:

[1, 3, 41, 97, 123, 291, 1669, 3977, 5007, 11931, 68429, 161893, 205287, 485679, 6637613, 19912839]

約数ペア:

[(1, 19912839), (3, 6637613), (41, 485679), (97, 205287), (123, 161893), (291, 68429), (1669, 11931), (3977, 5007)]