21280704

素因数分解:

$2^6\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 112

約数和(自身を含む): 60472320

約数和(自身を除く): 39191616

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 61, 64, 69, 79, 92, 96, 122, 138, 158, 183, 184, 192, 237, 244, 276, 316, 366, 368, 474, 488, 552, 632, 732, 736, 948, 976, 1104, 1264, 1403, 1464, 1472, 1817, 1896, 1952, 2208, 2528, 2806, 2928, 3634, 3792, 3904, 4209, 4416, 4819, 5056, 5451, 5612, 5856, 7268, 7584, 8418, 9638, 10902, 11224, 11712, 14457, 14536, 15168, 16836, 19276, 21804, 22448, 28914, 29072, 33672, 38552, 43608, 44896, 57828, 58144, 67344, 77104, 87216, 89792, 110837, 115656, 116288, 134688, 154208, 174432, 221674, 231312, 269376, 308416, 332511, 348864, 443348, 462624, 665022, 886696, 925248, 1330044, 1773392, 2660088, 3546784, 5320176, 7093568, 10640352, 21280704]

約数ペア:

[(1, 21280704), (2, 10640352), (3, 7093568), (4, 5320176), (6, 3546784), (8, 2660088), (12, 1773392), (16, 1330044), (23, 925248), (24, 886696), (32, 665022), (46, 462624), (48, 443348), (61, 348864), (64, 332511), (69, 308416), (79, 269376), (92, 231312), (96, 221674), (122, 174432), (138, 154208), (158, 134688), (183, 116288), (184, 115656), (192, 110837), (237, 89792), (244, 87216), (276, 77104), (316, 67344), (366, 58144), (368, 57828), (474, 44896), (488, 43608), (552, 38552), (632, 33672), (732, 29072), (736, 28914), (948, 22448), (976, 21804), (1104, 19276), (1264, 16836), (1403, 15168), (1464, 14536), (1472, 14457), (1817, 11712), (1896, 11224), (1952, 10902), (2208, 9638), (2528, 8418), (2806, 7584), (2928, 7268), (3634, 5856), (3792, 5612), (3904, 5451), (4209, 5056), (4416, 4819)]