211313128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2543}}^1$

素因数の和:2626

約数の個数: 64

約数和(自身を含む): 461583360

約数和(自身を除く): 250270232

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 47, 52, 68, 94, 104, 136, 188, 221, 376, 442, 611, 799, 884, 1222, 1598, 1768, 2444, 2543, 3196, 4888, 5086, 6392, 10172, 10387, 20344, 20774, 33059, 41548, 43231, 66118, 83096, 86462, 119521, 132236, 172924, 239042, 264472, 345848, 478084, 562003, 956168, 1124006, 1553773, 2031857, 2248012, 3107546, 4063714, 4496024, 6215092, 8127428, 12430184, 16254856, 26414141, 52828282, 105656564, 211313128]

約数ペア:

[(1, 211313128), (2, 105656564), (4, 52828282), (8, 26414141), (13, 16254856), (17, 12430184), (26, 8127428), (34, 6215092), (47, 4496024), (52, 4063714), (68, 3107546), (94, 2248012), (104, 2031857), (136, 1553773), (188, 1124006), (221, 956168), (376, 562003), (442, 478084), (611, 345848), (799, 264472), (884, 239042), (1222, 172924), (1598, 132236), (1768, 119521), (2444, 86462), (2543, 83096), (3196, 66118), (4888, 43231), (5086, 41548), (6392, 33059), (10172, 20774), (10387, 20344)]