1991330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:482

約数の個数: 32

約数和(自身を含む): 4010688

約数和(自身を除く): 2019358

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 421, 430, 473, 842, 946, 2105, 2365, 4210, 4631, 4730, 9262, 18103, 23155, 36206, 46310, 90515, 181030, 199133, 398266, 995665, 1991330]

約数ペア:

[(1, 1991330), (2, 995665), (5, 398266), (10, 199133), (11, 181030), (22, 90515), (43, 46310), (55, 36206), (86, 23155), (110, 18103), (215, 9262), (421, 4730), (430, 4631), (473, 4210), (842, 2365), (946, 2105)]