19403984

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{449}}^1$

素因数の和:567

約数の個数: 40

約数和(自身を含む): 39227400

約数和(自身を除く): 19823416

約数列:

[1, 2, 4, 8, 16, 37, 73, 74, 146, 148, 292, 296, 449, 584, 592, 898, 1168, 1796, 2701, 3592, 5402, 7184, 10804, 16613, 21608, 32777, 33226, 43216, 65554, 66452, 131108, 132904, 262216, 265808, 524432, 1212749, 2425498, 4850996, 9701992, 19403984]

約数ペア:

[(1, 19403984), (2, 9701992), (4, 4850996), (8, 2425498), (16, 1212749), (37, 524432), (73, 265808), (74, 262216), (146, 132904), (148, 131108), (292, 66452), (296, 65554), (449, 43216), (584, 33226), (592, 32777), (898, 21608), (1168, 16613), (1796, 10804), (2701, 7184), (3592, 5402)]