21261646

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1193}}^1$

素因数の和:1288

約数の個数: 32

約数和(自身を含む): 38972160

約数和(自身を除く): 17710514

約数列:

[1, 2, 7, 14, 19, 38, 67, 133, 134, 266, 469, 938, 1193, 1273, 2386, 2546, 8351, 8911, 16702, 17822, 22667, 45334, 79931, 158669, 159862, 317338, 559517, 1119034, 1518689, 3037378, 10630823, 21261646]

約数ペア:

[(1, 21261646), (2, 10630823), (7, 3037378), (14, 1518689), (19, 1119034), (38, 559517), (67, 317338), (133, 159862), (134, 158669), (266, 79931), (469, 45334), (938, 22667), (1193, 17822), (1273, 16702), (2386, 8911), (2546, 8351)]