21384779

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1933}}^1$

素因数の和:2006

約数の個数: 16

約数和(自身を含む): 24693312

約数和(自身を除く): 3308533

約数列:

[1, 13, 23, 37, 299, 481, 851, 1933, 11063, 25129, 44459, 71521, 577967, 929773, 1644983, 21384779]

約数ペア:

[(1, 21384779), (13, 1644983), (23, 929773), (37, 577967), (299, 71521), (481, 44459), (851, 25129), (1933, 11063)]