18859724

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1266

約数の個数: 36

約数和(自身を含む): 37323216

約数和(自身を除く): 18463492

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 169, 299, 338, 598, 676, 1196, 1213, 2426, 3887, 4852, 7774, 15548, 15769, 27899, 31538, 55798, 63076, 111596, 204997, 362687, 409994, 725374, 819988, 1450748, 4714931, 9429862, 18859724]

約数ペア:

[(1, 18859724), (2, 9429862), (4, 4714931), (13, 1450748), (23, 819988), (26, 725374), (46, 409994), (52, 362687), (92, 204997), (169, 111596), (299, 63076), (338, 55798), (598, 31538), (676, 27899), (1196, 15769), (1213, 15548), (2426, 7774), (3887, 4852)]