21014014

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 37483776

約数和(自身を除く): 16469762

約数列:

[1, 2, 7, 14, 43, 67, 86, 134, 301, 469, 521, 602, 938, 1042, 2881, 3647, 5762, 7294, 20167, 22403, 34907, 40334, 44806, 69814, 156821, 244349, 313642, 488698, 1501001, 3002002, 10507007, 21014014]

約数ペア:

[(1, 21014014), (2, 10507007), (7, 3002002), (14, 1501001), (43, 488698), (67, 313642), (86, 244349), (134, 156821), (301, 69814), (469, 44806), (521, 40334), (602, 34907), (938, 22403), (1042, 20167), (2881, 7294), (3647, 5762)]