19702858

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1423}}^1$

素因数の和:1498

約数の個数: 32

約数和(自身を含む): 36089856

約数和(自身を除く): 16386998

約数列:

[1, 2, 7, 14, 23, 43, 46, 86, 161, 301, 322, 602, 989, 1423, 1978, 2846, 6923, 9961, 13846, 19922, 32729, 61189, 65458, 122378, 229103, 428323, 458206, 856646, 1407347, 2814694, 9851429, 19702858]

約数ペア:

[(1, 19702858), (2, 9851429), (7, 2814694), (14, 1407347), (23, 856646), (43, 458206), (46, 428323), (86, 229103), (161, 122378), (301, 65458), (322, 61189), (602, 32729), (989, 19922), (1423, 13846), (1978, 9961), (2846, 6923)]