19581068

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4231}}^1$

素因数の和:4337

約数の個数: 24

約数和(自身を含む): 37326240

約数和(自身を除く): 17745172

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4231, 4628, 8462, 16924, 55003, 110006, 220012, 376559, 753118, 1506236, 4895267, 9790534, 19581068]

約数ペア:

[(1, 19581068), (2, 9790534), (4, 4895267), (13, 1506236), (26, 753118), (52, 376559), (89, 220012), (178, 110006), (356, 55003), (1157, 16924), (2314, 8462), (4231, 4628)]