19818008

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1559}}^1$

素因数の和:1799

約数の個数: 32

約数和(自身を含む): 42681600

約数和(自身を除く): 22863592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1559, 1589, 1816, 3118, 3178, 6236, 6356, 10913, 12472, 12712, 21826, 43652, 87304, 353893, 707786, 1415572, 2477251, 2831144, 4954502, 9909004, 19818008]

約数ペア:

[(1, 19818008), (2, 9909004), (4, 4954502), (7, 2831144), (8, 2477251), (14, 1415572), (28, 707786), (56, 353893), (227, 87304), (454, 43652), (908, 21826), (1559, 12712), (1589, 12472), (1816, 10913), (3118, 6356), (3178, 6236)]