21978376

素因数分解:

$2^3\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1459}}^1$

素因数の和:1741

約数の個数: 32

約数和(自身を含む): 47304000

約数和(自身を除く): 25325624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 269, 538, 1076, 1459, 1883, 2152, 2918, 3766, 5836, 7532, 10213, 11672, 15064, 20426, 40852, 81704, 392471, 784942, 1569884, 2747297, 3139768, 5494594, 10989188, 21978376]

約数ペア:

[(1, 21978376), (2, 10989188), (4, 5494594), (7, 3139768), (8, 2747297), (14, 1569884), (28, 784942), (56, 392471), (269, 81704), (538, 40852), (1076, 20426), (1459, 15064), (1883, 11672), (2152, 10213), (2918, 7532), (3766, 5836)]