20189917209

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{87402239}}^1$

素因数の和:87402260

約数の個数: 16

約数和(自身を含む): 33562460160

約数和(自身を除く): 13372542951

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 87402239, 262206717, 611815673, 961424629, 1835447019, 2884273887, 6729972403, 20189917209]

約数ペア:

[(1, 20189917209), (3, 6729972403), (7, 2884273887), (11, 1835447019), (21, 961424629), (33, 611815673), (77, 262206717), (231, 87402239)]