19398874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 32990976

約数和(自身を除く): 13592102

約数列:

[1, 2, 11, 22, 47, 73, 94, 146, 257, 514, 517, 803, 1034, 1606, 2827, 3431, 5654, 6862, 12079, 18761, 24158, 37522, 37741, 75482, 132869, 206371, 265738, 412742, 881767, 1763534, 9699437, 19398874]

約数ペア:

[(1, 19398874), (2, 9699437), (11, 1763534), (22, 881767), (47, 412742), (73, 265738), (94, 206371), (146, 132869), (257, 75482), (514, 37741), (517, 37522), (803, 24158), (1034, 18761), (1606, 12079), (2827, 6862), (3431, 5654)]