18875948

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3989}}^1$

素因数の和:4026

約数の個数: 36

約数和(自身を含む): 40889520

約数和(自身を除く): 22013572

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 3989, 4732, 7978, 15956, 27923, 51857, 55846, 103714, 111692, 207428, 362999, 674141, 725998, 1348282, 1451996, 2696564, 4718987, 9437974, 18875948]

約数ペア:

[(1, 18875948), (2, 9437974), (4, 4718987), (7, 2696564), (13, 1451996), (14, 1348282), (26, 725998), (28, 674141), (52, 362999), (91, 207428), (169, 111692), (182, 103714), (338, 55846), (364, 51857), (676, 27923), (1183, 15956), (2366, 7978), (3989, 4732)]