21000409018

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{953}}^1\times {\mathrm{268733}}^1$

素因数の和:269729

約数の個数: 16

約数和(自身を含む): 32302901736

約数和(自身を除く): 11302492718

約数列:

[1, 2, 41, 82, 953, 1906, 39073, 78146, 268733, 537466, 11018053, 22036106, 256102549, 512205098, 10500204509, 21000409018]

約数ペア:

[(1, 21000409018), (2, 10500204509), (41, 512205098), (82, 256102549), (953, 22036106), (1906, 11018053), (39073, 537466), (78146, 268733)]