18620967

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^2$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 27111024

約数和(自身を除く): 8490057

約数列:

[1, 3, 17, 51, 53, 83, 159, 249, 901, 1411, 2703, 4233, 4399, 6889, 13197, 20667, 74783, 117113, 224349, 351339, 365117, 1095351, 6206989, 18620967]

約数ペア:

[(1, 18620967), (3, 6206989), (17, 1095351), (51, 365117), (53, 351339), (83, 224349), (159, 117113), (249, 74783), (901, 20667), (1411, 13197), (2703, 6889), (4233, 4399)]