21811475

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5419}}^1$

素因数の和:5459

約数の個数: 24

約数和(自身を含む): 32259840

約数和(自身を除く): 10448365

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 5419, 27095, 37933, 124637, 135475, 189665, 623185, 872459, 948325, 3115925, 4362295, 21811475]

約数ペア:

[(1, 21811475), (5, 4362295), (7, 3115925), (23, 948325), (25, 872459), (35, 623185), (115, 189665), (161, 135475), (175, 124637), (575, 37933), (805, 27095), (4025, 5419)]