21051646

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{613}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 39610368

約数和(自身を除く): 18558722

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 223, 446, 613, 1226, 1561, 2453, 3122, 4291, 4906, 6743, 8582, 13486, 17171, 34342, 47201, 94402, 136699, 273398, 956893, 1503689, 1913786, 3007378, 10525823, 21051646]

約数ペア:

[(1, 21051646), (2, 10525823), (7, 3007378), (11, 1913786), (14, 1503689), (22, 956893), (77, 273398), (154, 136699), (223, 94402), (446, 47201), (613, 34342), (1226, 17171), (1561, 13486), (2453, 8582), (3122, 6743), (4291, 4906)]