19963041

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{977}}^1$

素因数の和:1133

約数の個数: 24

約数和(自身を含む): 31217760

約数和(自身を除く): 11254719

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 977, 2919, 2931, 6811, 6839, 20433, 20517, 47873, 135803, 143619, 407409, 950621, 2851863, 6654347, 19963041]

約数ペア:

[(1, 19963041), (3, 6654347), (7, 2851863), (21, 950621), (49, 407409), (139, 143619), (147, 135803), (417, 47873), (973, 20517), (977, 20433), (2919, 6839), (2931, 6811)]