21671104

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2$

素因数の和:154

約数の個数: 84

約数和(自身を含む): 53809392

約数和(自身を除く): 32138288

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 61, 64, 91, 104, 112, 122, 182, 208, 224, 244, 364, 416, 427, 448, 488, 728, 793, 832, 854, 976, 1456, 1586, 1708, 1952, 2912, 3172, 3416, 3721, 3904, 5551, 5824, 6344, 6832, 7442, 11102, 12688, 13664, 14884, 22204, 25376, 26047, 27328, 29768, 44408, 48373, 50752, 52094, 59536, 88816, 96746, 104188, 119072, 177632, 193492, 208376, 238144, 338611, 355264, 386984, 416752, 677222, 773968, 833504, 1354444, 1547936, 1667008, 2708888, 3095872, 5417776, 10835552, 21671104]

約数ペア:

[(1, 21671104), (2, 10835552), (4, 5417776), (7, 3095872), (8, 2708888), (13, 1667008), (14, 1547936), (16, 1354444), (26, 833504), (28, 773968), (32, 677222), (52, 416752), (56, 386984), (61, 355264), (64, 338611), (91, 238144), (104, 208376), (112, 193492), (122, 177632), (182, 119072), (208, 104188), (224, 96746), (244, 88816), (364, 59536), (416, 52094), (427, 50752), (448, 48373), (488, 44408), (728, 29768), (793, 27328), (832, 26047), (854, 25376), (976, 22204), (1456, 14884), (1586, 13664), (1708, 12688), (1952, 11102), (2912, 7442), (3172, 6832), (3416, 6344), (3721, 5824), (3904, 5551)]