21503091

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1741}}^1$

素因数の和:1946

約数の個数: 16

約数和(自身を含む): 30101760

約数和(自身を除く): 8598669

約数列:

[1, 3, 23, 69, 179, 537, 1741, 4117, 5223, 12351, 40043, 120129, 311639, 934917, 7167697, 21503091]

約数ペア:

[(1, 21503091), (3, 7167697), (23, 934917), (69, 311639), (179, 120129), (537, 40043), (1741, 12351), (4117, 5223)]