21501312

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:464

約数の個数: 128

約数和(自身を含む): 68870400

約数和(自身を除く): 47369088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 32, 38, 42, 48, 56, 57, 64, 76, 84, 96, 112, 114, 128, 133, 152, 168, 192, 224, 228, 266, 304, 336, 384, 399, 421, 448, 456, 532, 608, 672, 798, 842, 896, 912, 1064, 1216, 1263, 1344, 1596, 1684, 1824, 2128, 2432, 2526, 2688, 2947, 3192, 3368, 3648, 4256, 5052, 5894, 6384, 6736, 7296, 7999, 8512, 8841, 10104, 11788, 12768, 13472, 15998, 17024, 17682, 20208, 23576, 23997, 25536, 26944, 31996, 35364, 40416, 47152, 47994, 51072, 53888, 55993, 63992, 70728, 80832, 94304, 95988, 111986, 127984, 141456, 161664, 167979, 188608, 191976, 223972, 255968, 282912, 335958, 377216, 383952, 447944, 511936, 565824, 671916, 767904, 895888, 1023872, 1131648, 1343832, 1535808, 1791776, 2687664, 3071616, 3583552, 5375328, 7167104, 10750656, 21501312]

約数ペア:

[(1, 21501312), (2, 10750656), (3, 7167104), (4, 5375328), (6, 3583552), (7, 3071616), (8, 2687664), (12, 1791776), (14, 1535808), (16, 1343832), (19, 1131648), (21, 1023872), (24, 895888), (28, 767904), (32, 671916), (38, 565824), (42, 511936), (48, 447944), (56, 383952), (57, 377216), (64, 335958), (76, 282912), (84, 255968), (96, 223972), (112, 191976), (114, 188608), (128, 167979), (133, 161664), (152, 141456), (168, 127984), (192, 111986), (224, 95988), (228, 94304), (266, 80832), (304, 70728), (336, 63992), (384, 55993), (399, 53888), (421, 51072), (448, 47994), (456, 47152), (532, 40416), (608, 35364), (672, 31996), (798, 26944), (842, 25536), (896, 23997), (912, 23576), (1064, 20208), (1216, 17682), (1263, 17024), (1344, 15998), (1596, 13472), (1684, 12768), (1824, 11788), (2128, 10104), (2432, 8841), (2526, 8512), (2688, 7999), (2947, 7296), (3192, 6736), (3368, 6384), (3648, 5894), (4256, 5052)]