19810218

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{70249}}^1$

素因数の和:70301

約数の個数: 16

約数和(自身を含む): 40464000

約数和(自身を除く): 20653782

約数列:

[1, 2, 3, 6, 47, 94, 141, 282, 70249, 140498, 210747, 421494, 3301703, 6603406, 9905109, 19810218]

約数ペア:

[(1, 19810218), (2, 9905109), (3, 6603406), (6, 3301703), (47, 421494), (94, 210747), (141, 140498), (282, 70249)]