20337798

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 45536256

約数和(自身を除く): 25198458

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 169, 186, 338, 403, 507, 647, 806, 1014, 1209, 1294, 1941, 2418, 3882, 5239, 8411, 10478, 15717, 16822, 20057, 25233, 31434, 40114, 50466, 60171, 109343, 120342, 218686, 260741, 328029, 521482, 656058, 782223, 1564446, 3389633, 6779266, 10168899, 20337798]

約数ペア:

[(1, 20337798), (2, 10168899), (3, 6779266), (6, 3389633), (13, 1564446), (26, 782223), (31, 656058), (39, 521482), (62, 328029), (78, 260741), (93, 218686), (169, 120342), (186, 109343), (338, 60171), (403, 50466), (507, 40114), (647, 31434), (806, 25233), (1014, 20057), (1209, 16822), (1294, 15717), (1941, 10478), (2418, 8411), (3882, 5239)]