21257856

素因数分解:

$2^7\times 3^3\times {\mathrm{6151}}^1$

素因数の和:6174

約数の個数: 64

約数和(自身を含む): 62750400

約数和(自身を除く): 41492544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 288, 384, 432, 576, 864, 1152, 1728, 3456, 6151, 12302, 18453, 24604, 36906, 49208, 55359, 73812, 98416, 110718, 147624, 166077, 196832, 221436, 295248, 332154, 393664, 442872, 590496, 664308, 787328, 885744, 1180992, 1328616, 1771488, 2361984, 2657232, 3542976, 5314464, 7085952, 10628928, 21257856]

約数ペア:

[(1, 21257856), (2, 10628928), (3, 7085952), (4, 5314464), (6, 3542976), (8, 2657232), (9, 2361984), (12, 1771488), (16, 1328616), (18, 1180992), (24, 885744), (27, 787328), (32, 664308), (36, 590496), (48, 442872), (54, 393664), (64, 332154), (72, 295248), (96, 221436), (108, 196832), (128, 166077), (144, 147624), (192, 110718), (216, 98416), (288, 73812), (384, 55359), (432, 49208), (576, 36906), (864, 24604), (1152, 18453), (1728, 12302), (3456, 6151)]