21014157085

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1\times {\mathrm{207619}}^1$

素因数の和:208308

約数の個数: 16

約数和(自身を含む): 26070428160

約数和(自身を除く): 5056271075

約数列:

[1, 5, 31, 155, 653, 3265, 20243, 101215, 207619, 1038095, 6436189, 32180945, 135575207, 677876035, 4202831417, 21014157085]

約数ペア:

[(1, 21014157085), (5, 4202831417), (31, 677876035), (155, 135575207), (653, 32180945), (3265, 6436189), (20243, 1038095), (101215, 207619)]