19967193

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1213}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 30301440

約数和(自身を除く): 10334247

約数列:

[1, 3, 9, 31, 59, 93, 177, 279, 531, 1213, 1829, 3639, 5487, 10917, 16461, 37603, 71567, 112809, 214701, 338427, 644103, 2218577, 6655731, 19967193]

約数ペア:

[(1, 19967193), (3, 6655731), (9, 2218577), (31, 644103), (59, 338427), (93, 214701), (177, 112809), (279, 71567), (531, 37603), (1213, 16461), (1829, 10917), (3639, 5487)]