21903530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1151}}^1$

素因数の和:1342

約数の個数: 32

約数和(自身を含む): 43296768

約数和(自身を除く): 21393238

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 173, 346, 865, 1151, 1730, 1903, 2302, 3806, 5755, 9515, 11510, 12661, 19030, 25322, 63305, 126610, 199123, 398246, 995615, 1991230, 2190353, 4380706, 10951765, 21903530]

約数ペア:

[(1, 21903530), (2, 10951765), (5, 4380706), (10, 2190353), (11, 1991230), (22, 995615), (55, 398246), (110, 199123), (173, 126610), (346, 63305), (865, 25322), (1151, 19030), (1730, 12661), (1903, 11510), (2302, 9515), (3806, 5755)]