19988361

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2851}}^1$

素因数の和:2917

約数の個数: 24

約数和(自身を含む): 31143840

約数和(自身を除く): 11155479

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 2851, 7011, 8553, 25659, 54169, 116891, 162507, 350673, 487521, 1052019, 2220929, 6662787, 19988361]

約数ペア:

[(1, 19988361), (3, 6662787), (9, 2220929), (19, 1052019), (41, 487521), (57, 350673), (123, 162507), (171, 116891), (369, 54169), (779, 25659), (2337, 8553), (2851, 7011)]