21411607

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1249}}^1$

素因数の和:1366

約数の個数: 16

約数和(自身を含む): 25600000

約数和(自身を除く): 4188393

約数列:

[1, 7, 31, 79, 217, 553, 1249, 2449, 8743, 17143, 38719, 98671, 271033, 690697, 3058801, 21411607]

約数ペア:

[(1, 21411607), (7, 3058801), (31, 690697), (79, 271033), (217, 98671), (553, 38719), (1249, 17143), (2449, 8743)]