21250250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{12143}}^1$

素因数の和:12167

約数の個数: 32

約数和(自身を含む): 45467136

約数和(自身を除く): 24216886

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 875, 1750, 12143, 24286, 60715, 85001, 121430, 170002, 303575, 425005, 607150, 850010, 1517875, 2125025, 3035750, 4250050, 10625125, 21250250]

約数ペア:

[(1, 21250250), (2, 10625125), (5, 4250050), (7, 3035750), (10, 2125025), (14, 1517875), (25, 850010), (35, 607150), (50, 425005), (70, 303575), (125, 170002), (175, 121430), (250, 85001), (350, 60715), (875, 24286), (1750, 12143)]