21133545

素因数分解:

$3^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{2801}}^1$

素因数の和:3312

約数の個数: 16

約数和(自身を含む): 33892992

約数和(自身を除く): 12759447

約数列:

[1, 3, 5, 15, 503, 1509, 2515, 2801, 7545, 8403, 14005, 42015, 1408903, 4226709, 7044515, 21133545]

約数ペア:

[(1, 21133545), (3, 7044515), (5, 4226709), (15, 1408903), (503, 42015), (1509, 14005), (2515, 8403), (2801, 7545)]