20912476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12973}}^1$

素因数の和:13021

約数の個数: 24

約数和(自身を含む): 40686464

約数和(自身を除く): 19773988

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12973, 25946, 51892, 168649, 337298, 402163, 674596, 804326, 1608652, 5228119, 10456238, 20912476]

約数ペア:

[(1, 20912476), (2, 10456238), (4, 5228119), (13, 1608652), (26, 804326), (31, 674596), (52, 402163), (62, 337298), (124, 168649), (403, 51892), (806, 25946), (1612, 12973)]