21143616

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:268

約数の個数: 112

約数和(自身を含む): 61959744

約数和(自身を除く): 40816128

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 43, 48, 52, 64, 78, 86, 96, 104, 129, 156, 172, 192, 197, 208, 258, 312, 344, 394, 416, 516, 559, 591, 624, 688, 788, 832, 1032, 1118, 1182, 1248, 1376, 1576, 1677, 2064, 2236, 2364, 2496, 2561, 2752, 3152, 3354, 4128, 4472, 4728, 5122, 6304, 6708, 7683, 8256, 8471, 8944, 9456, 10244, 12608, 13416, 15366, 16942, 17888, 18912, 20488, 25413, 26832, 30732, 33884, 35776, 37824, 40976, 50826, 53664, 61464, 67768, 81952, 101652, 107328, 110123, 122928, 135536, 163904, 203304, 220246, 245856, 271072, 330369, 406608, 440492, 491712, 542144, 660738, 813216, 880984, 1321476, 1626432, 1761968, 2642952, 3523936, 5285904, 7047872, 10571808, 21143616]

約数ペア:

[(1, 21143616), (2, 10571808), (3, 7047872), (4, 5285904), (6, 3523936), (8, 2642952), (12, 1761968), (13, 1626432), (16, 1321476), (24, 880984), (26, 813216), (32, 660738), (39, 542144), (43, 491712), (48, 440492), (52, 406608), (64, 330369), (78, 271072), (86, 245856), (96, 220246), (104, 203304), (129, 163904), (156, 135536), (172, 122928), (192, 110123), (197, 107328), (208, 101652), (258, 81952), (312, 67768), (344, 61464), (394, 53664), (416, 50826), (516, 40976), (559, 37824), (591, 35776), (624, 33884), (688, 30732), (788, 26832), (832, 25413), (1032, 20488), (1118, 18912), (1182, 17888), (1248, 16942), (1376, 15366), (1576, 13416), (1677, 12608), (2064, 10244), (2236, 9456), (2364, 8944), (2496, 8471), (2561, 8256), (2752, 7683), (3152, 6708), (3354, 6304), (4128, 5122), (4472, 4728)]