20913476

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 37396800

約数和(自身を除く): 16483324

約数列:

[1, 2, 4, 71, 142, 211, 284, 349, 422, 698, 844, 1396, 14981, 24779, 29962, 49558, 59924, 73639, 99116, 147278, 294556, 5228369, 10456738, 20913476]

約数ペア:

[(1, 20913476), (2, 10456738), (4, 5228369), (71, 294556), (142, 147278), (211, 99116), (284, 73639), (349, 59924), (422, 49558), (698, 29962), (844, 24779), (1396, 14981)]