19778174

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1543}}^1$

素因数の和:1604

約数の個数: 32

約数和(自身を含む): 35017920

約数和(自身を除く): 15239746

約数列:

[1, 2, 13, 17, 26, 29, 34, 58, 221, 377, 442, 493, 754, 986, 1543, 3086, 6409, 12818, 20059, 26231, 40118, 44747, 52462, 89494, 341003, 581711, 682006, 760699, 1163422, 1521398, 9889087, 19778174]

約数ペア:

[(1, 19778174), (2, 9889087), (13, 1521398), (17, 1163422), (26, 760699), (29, 682006), (34, 581711), (58, 341003), (221, 89494), (377, 52462), (442, 44747), (493, 40118), (754, 26231), (986, 20059), (1543, 12818), (3086, 6409)]