20998896

素因数分解:

$2^4\times 3^1\times {\mathrm{181}}^1\times {\mathrm{2417}}^1$

素因数の和:2609

約数の個数: 40

約数和(自身を含む): 54569424

約数和(自身を除く): 33570528

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 181, 362, 543, 724, 1086, 1448, 2172, 2417, 2896, 4344, 4834, 7251, 8688, 9668, 14502, 19336, 29004, 38672, 58008, 116016, 437477, 874954, 1312431, 1749908, 2624862, 3499816, 5249724, 6999632, 10499448, 20998896]

約数ペア:

[(1, 20998896), (2, 10499448), (3, 6999632), (4, 5249724), (6, 3499816), (8, 2624862), (12, 1749908), (16, 1312431), (24, 874954), (48, 437477), (181, 116016), (362, 58008), (543, 38672), (724, 29004), (1086, 19336), (1448, 14502), (2172, 9668), (2417, 8688), (2896, 7251), (4344, 4834)]