21324885

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{347}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 36381312

約数和(自身を除く): 15056427

約数列:

[1, 3, 5, 15, 17, 51, 85, 241, 255, 347, 723, 1041, 1205, 1735, 3615, 4097, 5205, 5899, 12291, 17697, 20485, 29495, 61455, 83627, 88485, 250881, 418135, 1254405, 1421659, 4264977, 7108295, 21324885]

約数ペア:

[(1, 21324885), (3, 7108295), (5, 4264977), (15, 1421659), (17, 1254405), (51, 418135), (85, 250881), (241, 88485), (255, 83627), (347, 61455), (723, 29495), (1041, 20485), (1205, 17697), (1735, 12291), (3615, 5899), (4097, 5205)]