20648212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20899}}^1$

素因数の和:20935

約数の個数: 24

約数和(自身を含む): 40964000

約数和(自身を除く): 20315788

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20899, 41798, 83596, 271687, 397081, 543374, 794162, 1086748, 1588324, 5162053, 10324106, 20648212]

約数ペア:

[(1, 20648212), (2, 10324106), (4, 5162053), (13, 1588324), (19, 1086748), (26, 794162), (38, 543374), (52, 397081), (76, 271687), (247, 83596), (494, 41798), (988, 20899)]