19219431

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 15801369

約数列:

[1, 3, 7, 11, 19, 21, 29, 33, 57, 77, 87, 133, 151, 203, 209, 231, 319, 399, 453, 551, 609, 627, 957, 1057, 1463, 1653, 1661, 2233, 2869, 3171, 3857, 4379, 4389, 4983, 6061, 6699, 8607, 11571, 11627, 13137, 18183, 20083, 30653, 31559, 34881, 42427, 48169, 60249, 83201, 91959, 94677, 127281, 144507, 220913, 249603, 337183, 582407, 662739, 915211, 1011549, 1747221, 2745633, 6406477, 19219431]

約数ペア:

[(1, 19219431), (3, 6406477), (7, 2745633), (11, 1747221), (19, 1011549), (21, 915211), (29, 662739), (33, 582407), (57, 337183), (77, 249603), (87, 220913), (133, 144507), (151, 127281), (203, 94677), (209, 91959), (231, 83201), (319, 60249), (399, 48169), (453, 42427), (551, 34881), (609, 31559), (627, 30653), (957, 20083), (1057, 18183), (1463, 13137), (1653, 11627), (1661, 11571), (2233, 8607), (2869, 6699), (3171, 6061), (3857, 4983), (4379, 4389)]