18766790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2111}}^1$

素因数の和:2252

約数の個数: 32

約数和(自身を含む): 38928384

約数和(自身を除く): 20161594

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 2111, 4222, 4445, 8890, 10555, 14777, 21110, 29554, 73885, 147770, 268097, 536194, 1340485, 1876679, 2680970, 3753358, 9383395, 18766790]

約数ペア:

[(1, 18766790), (2, 9383395), (5, 3753358), (7, 2680970), (10, 1876679), (14, 1340485), (35, 536194), (70, 268097), (127, 147770), (254, 73885), (635, 29554), (889, 21110), (1270, 14777), (1778, 10555), (2111, 8890), (4222, 4445)]