21680208

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13687}}^1$

素因数の和:13712

約数の個数: 60

約数和(自身を含む): 66195168

約数和(自身を除く): 44514960

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 132, 144, 176, 198, 264, 396, 528, 792, 1584, 13687, 27374, 41061, 54748, 82122, 109496, 123183, 150557, 164244, 218992, 246366, 301114, 328488, 451671, 492732, 602228, 656976, 903342, 985464, 1204456, 1355013, 1806684, 1970928, 2408912, 2710026, 3613368, 5420052, 7226736, 10840104, 21680208]

約数ペア:

[(1, 21680208), (2, 10840104), (3, 7226736), (4, 5420052), (6, 3613368), (8, 2710026), (9, 2408912), (11, 1970928), (12, 1806684), (16, 1355013), (18, 1204456), (22, 985464), (24, 903342), (33, 656976), (36, 602228), (44, 492732), (48, 451671), (66, 328488), (72, 301114), (88, 246366), (99, 218992), (132, 164244), (144, 150557), (176, 123183), (198, 109496), (264, 82122), (396, 54748), (528, 41061), (792, 27374), (1584, 13687)]