19920987

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1201}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 30626960

約数和(自身を除く): 10705973

約数列:

[1, 3, 9, 19, 57, 97, 171, 291, 873, 1201, 1843, 3603, 5529, 10809, 16587, 22819, 68457, 116497, 205371, 349491, 1048473, 2213443, 6640329, 19920987]

約数ペア:

[(1, 19920987), (3, 6640329), (9, 2213443), (19, 1048473), (57, 349491), (97, 205371), (171, 116497), (291, 68457), (873, 22819), (1201, 16587), (1843, 10809), (3603, 5529)]