21813957

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11597}}^1$

素因数の和:11633

約数の個数: 24

約数和(自身を含む): 36185760

約数和(自身を除く): 14371803

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11597, 34791, 104373, 127567, 220343, 382701, 661029, 1148103, 1983087, 2423773, 7271319, 21813957]

約数ペア:

[(1, 21813957), (3, 7271319), (9, 2423773), (11, 1983087), (19, 1148103), (33, 661029), (57, 382701), (99, 220343), (171, 127567), (209, 104373), (627, 34791), (1881, 11597)]