19880992

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{1721}}^1$

素因数の和:1769

約数の個数: 36

約数和(自身を含む): 41333166

約数和(自身を除く): 21452174

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 361, 608, 722, 1444, 1721, 2888, 3442, 5776, 6884, 11552, 13768, 27536, 32699, 55072, 65398, 130796, 261592, 523184, 621281, 1046368, 1242562, 2485124, 4970248, 9940496, 19880992]

約数ペア:

[(1, 19880992), (2, 9940496), (4, 4970248), (8, 2485124), (16, 1242562), (19, 1046368), (32, 621281), (38, 523184), (76, 261592), (152, 130796), (304, 65398), (361, 55072), (608, 32699), (722, 27536), (1444, 13768), (1721, 11552), (2888, 6884), (3442, 5776)]