20877116

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{4139}}^1$

素因数の和:4253

約数の個数: 24

約数和(自身を含む): 39760560

約数和(自身を除く): 18883444

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 4139, 5044, 8278, 16556, 53807, 107614, 215228, 401483, 802966, 1605932, 5219279, 10438558, 20877116]

約数ペア:

[(1, 20877116), (2, 10438558), (4, 5219279), (13, 1605932), (26, 802966), (52, 401483), (97, 215228), (194, 107614), (388, 53807), (1261, 16556), (2522, 8278), (4139, 5044)]