21198736

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101917}}^1$

素因数の和:101938

約数の個数: 20

約数和(自身を含む): 44232412

約数和(自身を除く): 23033676

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101917, 203834, 407668, 815336, 1324921, 1630672, 2649842, 5299684, 10599368, 21198736]

約数ペア:

[(1, 21198736), (2, 10599368), (4, 5299684), (8, 2649842), (13, 1630672), (16, 1324921), (26, 815336), (52, 407668), (104, 203834), (208, 101917)]