21493472

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 144

約数和(自身を含む): 58183776

約数和(自身を除く): 36690304

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 32, 44, 52, 56, 61, 77, 88, 91, 104, 112, 121, 122, 143, 154, 176, 182, 208, 224, 242, 244, 286, 308, 352, 364, 416, 427, 484, 488, 572, 616, 671, 728, 793, 847, 854, 968, 976, 1001, 1144, 1232, 1342, 1456, 1573, 1586, 1694, 1708, 1936, 1952, 2002, 2288, 2464, 2684, 2912, 3146, 3172, 3388, 3416, 3872, 4004, 4576, 4697, 5368, 5551, 6292, 6344, 6776, 6832, 7381, 8008, 8723, 9394, 10736, 11011, 11102, 12584, 12688, 13552, 13664, 14762, 16016, 17446, 18788, 21472, 22022, 22204, 25168, 25376, 27104, 29524, 32032, 34892, 37576, 44044, 44408, 50336, 51667, 59048, 61061, 69784, 75152, 88088, 88816, 95953, 103334, 118096, 122122, 139568, 150304, 176176, 177632, 191906, 206668, 236192, 244244, 279136, 352352, 383812, 413336, 488488, 671671, 767624, 826672, 976976, 1343342, 1535248, 1653344, 1953952, 2686684, 3070496, 5373368, 10746736, 21493472]

約数ペア:

[(1, 21493472), (2, 10746736), (4, 5373368), (7, 3070496), (8, 2686684), (11, 1953952), (13, 1653344), (14, 1535248), (16, 1343342), (22, 976976), (26, 826672), (28, 767624), (32, 671671), (44, 488488), (52, 413336), (56, 383812), (61, 352352), (77, 279136), (88, 244244), (91, 236192), (104, 206668), (112, 191906), (121, 177632), (122, 176176), (143, 150304), (154, 139568), (176, 122122), (182, 118096), (208, 103334), (224, 95953), (242, 88816), (244, 88088), (286, 75152), (308, 69784), (352, 61061), (364, 59048), (416, 51667), (427, 50336), (484, 44408), (488, 44044), (572, 37576), (616, 34892), (671, 32032), (728, 29524), (793, 27104), (847, 25376), (854, 25168), (968, 22204), (976, 22022), (1001, 21472), (1144, 18788), (1232, 17446), (1342, 16016), (1456, 14762), (1573, 13664), (1586, 13552), (1694, 12688), (1708, 12584), (1936, 11102), (1952, 11011), (2002, 10736), (2288, 9394), (2464, 8723), (2684, 8008), (2912, 7381), (3146, 6832), (3172, 6776), (3388, 6344), (3416, 6292), (3872, 5551), (4004, 5368), (4576, 4697)]