21490254

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2027}}^1$

素因数の和:2085

約数の個数: 48

約数和(自身を含む): 50618880

約数和(自身を除く): 29128626

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 114, 171, 186, 279, 342, 558, 589, 1178, 1767, 2027, 3534, 4054, 5301, 6081, 10602, 12162, 18243, 36486, 38513, 62837, 77026, 115539, 125674, 188511, 231078, 346617, 377022, 565533, 693234, 1131066, 1193903, 2387806, 3581709, 7163418, 10745127, 21490254]

約数ペア:

[(1, 21490254), (2, 10745127), (3, 7163418), (6, 3581709), (9, 2387806), (18, 1193903), (19, 1131066), (31, 693234), (38, 565533), (57, 377022), (62, 346617), (93, 231078), (114, 188511), (171, 125674), (186, 115539), (279, 77026), (342, 62837), (558, 38513), (589, 36486), (1178, 18243), (1767, 12162), (2027, 10602), (3534, 6081), (4054, 5301)]