19976523

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 31428096

約数和(自身を除く): 11451573

約数列:

[1, 3, 7, 21, 73, 83, 157, 219, 249, 471, 511, 581, 1099, 1533, 1743, 3297, 6059, 11461, 13031, 18177, 34383, 39093, 42413, 80227, 91217, 127239, 240681, 273651, 951263, 2853789, 6658841, 19976523]

約数ペア:

[(1, 19976523), (3, 6658841), (7, 2853789), (21, 951263), (73, 273651), (83, 240681), (157, 127239), (219, 91217), (249, 80227), (471, 42413), (511, 39093), (581, 34383), (1099, 18177), (1533, 13031), (1743, 11461), (3297, 6059)]