21225568

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 53089344

約数和(自身を除く): 31863776

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 37, 52, 56, 74, 91, 104, 112, 148, 182, 197, 208, 224, 259, 296, 364, 394, 416, 481, 518, 592, 728, 788, 962, 1036, 1184, 1379, 1456, 1576, 1924, 2072, 2561, 2758, 2912, 3152, 3367, 3848, 4144, 5122, 5516, 6304, 6734, 7289, 7696, 8288, 10244, 11032, 13468, 14578, 15392, 17927, 20488, 22064, 26936, 29156, 35854, 40976, 44128, 51023, 53872, 58312, 71708, 81952, 94757, 102046, 107744, 116624, 143416, 189514, 204092, 233248, 286832, 379028, 408184, 573664, 663299, 758056, 816368, 1326598, 1516112, 1632736, 2653196, 3032224, 5306392, 10612784, 21225568]

約数ペア:

[(1, 21225568), (2, 10612784), (4, 5306392), (7, 3032224), (8, 2653196), (13, 1632736), (14, 1516112), (16, 1326598), (26, 816368), (28, 758056), (32, 663299), (37, 573664), (52, 408184), (56, 379028), (74, 286832), (91, 233248), (104, 204092), (112, 189514), (148, 143416), (182, 116624), (197, 107744), (208, 102046), (224, 94757), (259, 81952), (296, 71708), (364, 58312), (394, 53872), (416, 51023), (481, 44128), (518, 40976), (592, 35854), (728, 29156), (788, 26936), (962, 22064), (1036, 20488), (1184, 17927), (1379, 15392), (1456, 14578), (1576, 13468), (1924, 11032), (2072, 10244), (2561, 8288), (2758, 7696), (2912, 7289), (3152, 6734), (3367, 6304), (3848, 5516), (4144, 5122)]