20969904

素因数分解:

$2^4\times 3^1\times {\mathrm{347}}^1\times {\mathrm{1259}}^1$

素因数の和:1617

約数の個数: 40

約数和(自身を含む): 54371520

約数和(自身を除く): 33401616

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 347, 694, 1041, 1259, 1388, 2082, 2518, 2776, 3777, 4164, 5036, 5552, 7554, 8328, 10072, 15108, 16656, 20144, 30216, 60432, 436873, 873746, 1310619, 1747492, 2621238, 3494984, 5242476, 6989968, 10484952, 20969904]

約数ペア:

[(1, 20969904), (2, 10484952), (3, 6989968), (4, 5242476), (6, 3494984), (8, 2621238), (12, 1747492), (16, 1310619), (24, 873746), (48, 436873), (347, 60432), (694, 30216), (1041, 20144), (1259, 16656), (1388, 15108), (2082, 10072), (2518, 8328), (2776, 7554), (3777, 5552), (4164, 5036)]