21896816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 60

約数和(自身を含む): 47621952

約数和(自身を除く): 25725136

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 223, 272, 304, 323, 361, 446, 646, 722, 892, 1292, 1444, 1784, 2584, 2888, 3568, 3791, 4237, 5168, 5776, 6137, 7582, 8474, 12274, 15164, 16948, 24548, 30328, 33896, 49096, 60656, 67792, 72029, 80503, 98192, 144058, 161006, 288116, 322012, 576232, 644024, 1152464, 1288048, 1368551, 2737102, 5474204, 10948408, 21896816]

約数ペア:

[(1, 21896816), (2, 10948408), (4, 5474204), (8, 2737102), (16, 1368551), (17, 1288048), (19, 1152464), (34, 644024), (38, 576232), (68, 322012), (76, 288116), (136, 161006), (152, 144058), (223, 98192), (272, 80503), (304, 72029), (323, 67792), (361, 60656), (446, 49096), (646, 33896), (722, 30328), (892, 24548), (1292, 16948), (1444, 15164), (1784, 12274), (2584, 8474), (2888, 7582), (3568, 6137), (3791, 5776), (4237, 5168)]