81916107

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4919}}^1$

素因数の和:5003

約数の個数: 32

約数和(自身を含む): 136657920

約数和(自身を除く): 54741813

約数列:

[1, 3, 7, 13, 21, 39, 61, 91, 183, 273, 427, 793, 1281, 2379, 4919, 5551, 14757, 16653, 34433, 63947, 103299, 191841, 300059, 447629, 900177, 1342887, 2100413, 3900767, 6301239, 11702301, 27305369, 81916107]

約数ペア:

[(1, 81916107), (3, 27305369), (7, 11702301), (13, 6301239), (21, 3900767), (39, 2100413), (61, 1342887), (91, 900177), (183, 447629), (273, 300059), (427, 191841), (793, 103299), (1281, 63947), (2379, 34433), (4919, 16653), (5551, 14757)]