21143846

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{4003}}^1$

素因数の和:4163

約数の個数: 16

約数和(自身を含む): 33633600

約数和(自身を除く): 12489754

約数列:

[1, 2, 19, 38, 139, 278, 2641, 4003, 5282, 8006, 76057, 152114, 556417, 1112834, 10571923, 21143846]

約数ペア:

[(1, 21143846), (2, 10571923), (19, 1112834), (38, 556417), (139, 152114), (278, 76057), (2641, 8006), (4003, 5282)]