21087982

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1\times {\mathrm{653}}^1$

素因数の和:963

約数の個数: 16

約数和(自身を含む): 32286672

約数和(自身を除く): 11198690

約数列:

[1, 2, 67, 134, 241, 482, 653, 1306, 16147, 32294, 43751, 87502, 157373, 314746, 10543991, 21087982]

約数ペア:

[(1, 21087982), (2, 10543991), (67, 314746), (134, 157373), (241, 87502), (482, 43751), (653, 32294), (1306, 16147)]