21857552

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 43538880

約数和(自身を除く): 21681328

約数列:

[1, 2, 4, 8, 16, 83, 109, 151, 166, 218, 302, 332, 436, 604, 664, 872, 1208, 1328, 1744, 2416, 9047, 12533, 16459, 18094, 25066, 32918, 36188, 50132, 65836, 72376, 100264, 131672, 144752, 200528, 263344, 1366097, 2732194, 5464388, 10928776, 21857552]

約数ペア:

[(1, 21857552), (2, 10928776), (4, 5464388), (8, 2732194), (16, 1366097), (83, 263344), (109, 200528), (151, 144752), (166, 131672), (218, 100264), (302, 72376), (332, 65836), (436, 50132), (604, 36188), (664, 32918), (872, 25066), (1208, 18094), (1328, 16459), (1744, 12533), (2416, 9047)]