21186530

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1699}}^1$

素因数の和:1778

約数の個数: 32

約数和(自身を含む): 40392000

約数和(自身を除く): 19205470

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 215, 290, 430, 1247, 1699, 2494, 3398, 6235, 8495, 12470, 16990, 49271, 73057, 98542, 146114, 246355, 365285, 492710, 730570, 2118653, 4237306, 10593265, 21186530]

約数ペア:

[(1, 21186530), (2, 10593265), (5, 4237306), (10, 2118653), (29, 730570), (43, 492710), (58, 365285), (86, 246355), (145, 146114), (215, 98542), (290, 73057), (430, 49271), (1247, 16990), (1699, 12470), (2494, 8495), (3398, 6235)]