2819985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 5225472

約数和(自身を除く): 2405487

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 107, 251, 321, 535, 749, 753, 1255, 1605, 1757, 2247, 3745, 3765, 5271, 8785, 11235, 26355, 26857, 80571, 134285, 187999, 402855, 563997, 939995, 2819985]

約数ペア:

[(1, 2819985), (3, 939995), (5, 563997), (7, 402855), (15, 187999), (21, 134285), (35, 80571), (105, 26857), (107, 26355), (251, 11235), (321, 8785), (535, 5271), (749, 3765), (753, 3745), (1255, 2247), (1605, 1757)]