21715892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13339}}^1$

素因数の和:13391

約数の個数: 24

約数和(自身を含む): 42581280

約数和(自身を除く): 20865388

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13339, 26678, 53356, 146729, 293458, 493543, 586916, 987086, 1974172, 5428973, 10857946, 21715892]

約数ペア:

[(1, 21715892), (2, 10857946), (4, 5428973), (11, 1974172), (22, 987086), (37, 586916), (44, 493543), (74, 293458), (148, 146729), (407, 53356), (814, 26678), (1628, 13339)]