219906812

素因数分解:

$2^2\times {\mathrm{853}}^1\times {\mathrm{64451}}^1$

素因数の和:65308

約数の個数: 12

約数和(自身を含む): 385294056

約数和(自身を除く): 165387244

約数列:

[1, 2, 4, 853, 1706, 3412, 64451, 128902, 257804, 54976703, 109953406, 219906812]

約数ペア:

[(1, 219906812), (2, 109953406), (4, 54976703), (853, 257804), (1706, 128902), (3412, 64451)]