21010010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15797}}^1$

素因数の和:15830

約数の個数: 32

約数和(自身を含む): 45498240

約数和(自身を除く): 24488230

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15797, 31594, 78985, 110579, 157970, 221158, 300143, 552895, 600286, 1105790, 1500715, 2101001, 3001430, 4202002, 10505005, 21010010]

約数ペア:

[(1, 21010010), (2, 10505005), (5, 4202002), (7, 3001430), (10, 2101001), (14, 1500715), (19, 1105790), (35, 600286), (38, 552895), (70, 300143), (95, 221158), (133, 157970), (190, 110579), (266, 78985), (665, 31594), (1330, 15797)]