18697784

素因数分解:

$2^3\times 7^1\times {\mathrm{233}}^1\times {\mathrm{1433}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 40266720

約数和(自身を除く): 21568936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 233, 466, 932, 1433, 1631, 1864, 2866, 3262, 5732, 6524, 10031, 11464, 13048, 20062, 40124, 80248, 333889, 667778, 1335556, 2337223, 2671112, 4674446, 9348892, 18697784]

約数ペア:

[(1, 18697784), (2, 9348892), (4, 4674446), (7, 2671112), (8, 2337223), (14, 1335556), (28, 667778), (56, 333889), (233, 80248), (466, 40124), (932, 20062), (1433, 13048), (1631, 11464), (1864, 10031), (2866, 6524), (3262, 5732)]