21417195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1787}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 37075968

約数和(自身を除く): 15658773

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 705, 799, 1787, 2397, 3995, 5361, 8935, 11985, 26805, 30379, 83989, 91137, 151895, 251967, 419945, 455685, 1259835, 1427813, 4283439, 7139065, 21417195]

約数ペア:

[(1, 21417195), (3, 7139065), (5, 4283439), (15, 1427813), (17, 1259835), (47, 455685), (51, 419945), (85, 251967), (141, 151895), (235, 91137), (255, 83989), (705, 30379), (799, 26805), (1787, 11985), (2397, 8935), (3995, 5361)]