19909472

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 43146432

約数和(自身を除く): 23236960

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 163, 176, 326, 347, 352, 652, 694, 1304, 1388, 1793, 2608, 2776, 3586, 3817, 5216, 5552, 7172, 7634, 11104, 14344, 15268, 28688, 30536, 56561, 57376, 61072, 113122, 122144, 226244, 452488, 622171, 904976, 1244342, 1809952, 2488684, 4977368, 9954736, 19909472]

約数ペア:

[(1, 19909472), (2, 9954736), (4, 4977368), (8, 2488684), (11, 1809952), (16, 1244342), (22, 904976), (32, 622171), (44, 452488), (88, 226244), (163, 122144), (176, 113122), (326, 61072), (347, 57376), (352, 56561), (652, 30536), (694, 28688), (1304, 15268), (1388, 14344), (1793, 11104), (2608, 7634), (2776, 7172), (3586, 5552), (3817, 5216)]