21416073

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13420407

約数列:

[1, 3, 7, 17, 21, 51, 119, 239, 251, 357, 717, 753, 1673, 1757, 4063, 4267, 5019, 5271, 12189, 12801, 28441, 29869, 59989, 85323, 89607, 179967, 419923, 1019813, 1259769, 3059439, 7138691, 21416073]

約数ペア:

[(1, 21416073), (3, 7138691), (7, 3059439), (17, 1259769), (21, 1019813), (51, 419923), (119, 179967), (239, 89607), (251, 85323), (357, 59989), (717, 29869), (753, 28441), (1673, 12801), (1757, 12189), (4063, 5271), (4267, 5019)]