18984801

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 29956608

約数和(自身を除く): 10971807

約数列:

[1, 3, 11, 17, 33, 43, 51, 129, 187, 473, 561, 731, 787, 1419, 2193, 2361, 8041, 8657, 13379, 24123, 25971, 33841, 40137, 101523, 147169, 372251, 441507, 575297, 1116753, 1725891, 6328267, 18984801]

約数ペア:

[(1, 18984801), (3, 6328267), (11, 1725891), (17, 1116753), (33, 575297), (43, 441507), (51, 372251), (129, 147169), (187, 101523), (473, 40137), (561, 33841), (731, 25971), (787, 24123), (1419, 13379), (2193, 8657), (2361, 8041)]