81804915

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13877}}^1$

素因数の和:14019

約数の個数: 24

約数和(自身を含む): 142887888

約数和(自身を除く): 61082973

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 5895, 13877, 41631, 69385, 124893, 208155, 624465, 1817887, 5453661, 9089435, 16360983, 27268305, 81804915]

約数ペア:

[(1, 81804915), (3, 27268305), (5, 16360983), (9, 9089435), (15, 5453661), (45, 1817887), (131, 624465), (393, 208155), (655, 124893), (1179, 69385), (1965, 41631), (5895, 13877)]