21885264

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:473

約数の個数: 90

約数和(自身を含む): 64795146

約数和(自身を除く): 42909882

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 361, 421, 456, 684, 722, 842, 912, 1083, 1263, 1368, 1444, 1684, 2166, 2526, 2736, 2888, 3249, 3368, 3789, 4332, 5052, 5776, 6498, 6736, 7578, 7999, 8664, 10104, 12996, 15156, 15998, 17328, 20208, 23997, 25992, 30312, 31996, 47994, 51984, 60624, 63992, 71991, 95988, 127984, 143982, 151981, 191976, 287964, 303962, 383952, 455943, 575928, 607924, 911886, 1151856, 1215848, 1367829, 1823772, 2431696, 2735658, 3647544, 5471316, 7295088, 10942632, 21885264]

約数ペア:

[(1, 21885264), (2, 10942632), (3, 7295088), (4, 5471316), (6, 3647544), (8, 2735658), (9, 2431696), (12, 1823772), (16, 1367829), (18, 1215848), (19, 1151856), (24, 911886), (36, 607924), (38, 575928), (48, 455943), (57, 383952), (72, 303962), (76, 287964), (114, 191976), (144, 151981), (152, 143982), (171, 127984), (228, 95988), (304, 71991), (342, 63992), (361, 60624), (421, 51984), (456, 47994), (684, 31996), (722, 30312), (842, 25992), (912, 23997), (1083, 20208), (1263, 17328), (1368, 15998), (1444, 15156), (1684, 12996), (2166, 10104), (2526, 8664), (2736, 7999), (2888, 7578), (3249, 6736), (3368, 6498), (3789, 5776), (4332, 5052)]