28720978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 50948352

約数和(自身を除く): 22227374

約数列:

[1, 2, 11, 13, 22, 26, 143, 233, 286, 431, 466, 862, 2563, 3029, 4741, 5126, 5603, 6058, 9482, 11206, 33319, 61633, 66638, 100423, 123266, 200846, 1104653, 1305499, 2209306, 2610998, 14360489, 28720978]

約数ペア:

[(1, 28720978), (2, 14360489), (11, 2610998), (13, 2209306), (22, 1305499), (26, 1104653), (143, 200846), (233, 123266), (286, 100423), (431, 66638), (466, 61633), (862, 33319), (2563, 11206), (3029, 9482), (4741, 6058), (5126, 5603)]