18702381

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 27279360

約数和(自身を除く): 8576979

約数列:

[1, 3, 23, 47, 69, 73, 79, 141, 219, 237, 1081, 1679, 1817, 3243, 3431, 3713, 5037, 5451, 5767, 10293, 11139, 17301, 78913, 85399, 132641, 236739, 256197, 271049, 397923, 813147, 6234127, 18702381]

約数ペア:

[(1, 18702381), (3, 6234127), (23, 813147), (47, 397923), (69, 271049), (73, 256197), (79, 236739), (141, 132641), (219, 85399), (237, 78913), (1081, 17301), (1679, 11139), (1817, 10293), (3243, 5767), (3431, 5451), (3713, 5037)]