19861998

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1709}}^1$

素因数の和:1876

約数の個数: 32

約数和(自身を含む): 43092000

約数和(自身を除く): 23230002

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 149, 298, 447, 894, 1709, 1937, 3418, 3874, 5127, 5811, 10254, 11622, 22217, 44434, 66651, 133302, 254641, 509282, 763923, 1527846, 3310333, 6620666, 9930999, 19861998]

約数ペア:

[(1, 19861998), (2, 9930999), (3, 6620666), (6, 3310333), (13, 1527846), (26, 763923), (39, 509282), (78, 254641), (149, 133302), (298, 66651), (447, 44434), (894, 22217), (1709, 11622), (1937, 10254), (3418, 5811), (3874, 5127)]