16861977

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 28911168

約数和(自身を除く): 12049191

約数列:

[1, 3, 9, 11, 17, 33, 43, 51, 99, 129, 153, 187, 233, 387, 473, 561, 699, 731, 1419, 1683, 2097, 2193, 2563, 3961, 4257, 6579, 7689, 8041, 10019, 11883, 23067, 24123, 30057, 35649, 43571, 72369, 90171, 110209, 130713, 170323, 330627, 392139, 510969, 991881, 1532907, 1873553, 5620659, 16861977]

約数ペア:

[(1, 16861977), (3, 5620659), (9, 1873553), (11, 1532907), (17, 991881), (33, 510969), (43, 392139), (51, 330627), (99, 170323), (129, 130713), (153, 110209), (187, 90171), (233, 72369), (387, 43571), (473, 35649), (561, 30057), (699, 24123), (731, 23067), (1419, 11883), (1683, 10019), (2097, 8041), (2193, 7689), (2563, 6579), (3961, 4257)]