19641356

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4357}}^1$

素因数の和:4398

約数の個数: 36

約数和(自身を含む): 41732208

約数和(自身を除く): 22090852

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4357, 4508, 8714, 17428, 30499, 60998, 100211, 121996, 200422, 213493, 400844, 426986, 701477, 853972, 1402954, 2805908, 4910339, 9820678, 19641356]

約数ペア:

[(1, 19641356), (2, 9820678), (4, 4910339), (7, 2805908), (14, 1402954), (23, 853972), (28, 701477), (46, 426986), (49, 400844), (92, 213493), (98, 200422), (161, 121996), (196, 100211), (322, 60998), (644, 30499), (1127, 17428), (2254, 8714), (4357, 4508)]