13238631

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 23721984

約数和(自身を除く): 10483353

約数列:

[1, 3, 7, 9, 17, 21, 47, 51, 63, 119, 141, 153, 263, 329, 357, 423, 789, 799, 987, 1071, 1841, 2367, 2397, 2961, 4471, 5523, 5593, 7191, 12361, 13413, 16569, 16779, 31297, 37083, 40239, 50337, 86527, 93891, 111249, 210137, 259581, 281673, 630411, 778743, 1470959, 1891233, 4412877, 13238631]

約数ペア:

[(1, 13238631), (3, 4412877), (7, 1891233), (9, 1470959), (17, 778743), (21, 630411), (47, 281673), (51, 259581), (63, 210137), (119, 111249), (141, 93891), (153, 86527), (263, 50337), (329, 40239), (357, 37083), (423, 31297), (789, 16779), (799, 16569), (987, 13413), (1071, 12361), (1841, 7191), (2367, 5593), (2397, 5523), (2961, 4471)]