39970018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{25589}}^1$

素因数の和:25673

約数の個数: 16

約数和(自身を含む): 66329280

約数和(自身を除く): 26359262

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 25589, 51178, 281479, 562958, 1816819, 3633638, 19985009, 39970018]

約数ペア:

[(1, 39970018), (2, 19985009), (11, 3633638), (22, 1816819), (71, 562958), (142, 281479), (781, 51178), (1562, 25589)]