20901944

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5113}}^1$

素因数の和:5199

約数の個数: 32

約数和(自身を含む): 45412320

約数和(自身を除く): 24510376

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 5113, 10226, 20452, 35791, 40904, 71582, 143164, 286328, 373249, 746498, 1492996, 2612743, 2985992, 5225486, 10450972, 20901944]

約数ペア:

[(1, 20901944), (2, 10450972), (4, 5225486), (7, 2985992), (8, 2612743), (14, 1492996), (28, 746498), (56, 373249), (73, 286328), (146, 143164), (292, 71582), (511, 40904), (584, 35791), (1022, 20452), (2044, 10226), (4088, 5113)]