199939311

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 354375840

約数和(自身を除く): 154436529

約数列:

[1, 3, 9, 11, 13, 29, 33, 39, 87, 99, 117, 121, 143, 261, 319, 363, 377, 429, 487, 957, 1089, 1131, 1287, 1461, 1573, 2871, 3393, 3509, 4147, 4383, 4719, 5357, 6331, 10527, 12441, 14123, 14157, 16071, 18993, 31581, 37323, 42369, 45617, 48213, 56979, 58927, 69641, 127107, 136851, 155353, 176781, 183599, 208923, 410553, 466059, 530343, 550797, 626769, 766051, 1398177, 1652391, 1708883, 2019589, 2298153, 5126649, 6058767, 6894459, 15379947, 18176301, 22215479, 66646437, 199939311]

約数ペア:

[(1, 199939311), (3, 66646437), (9, 22215479), (11, 18176301), (13, 15379947), (29, 6894459), (33, 6058767), (39, 5126649), (87, 2298153), (99, 2019589), (117, 1708883), (121, 1652391), (143, 1398177), (261, 766051), (319, 626769), (363, 550797), (377, 530343), (429, 466059), (487, 410553), (957, 208923), (1089, 183599), (1131, 176781), (1287, 155353), (1461, 136851), (1573, 127107), (2871, 69641), (3393, 58927), (3509, 56979), (4147, 48213), (4383, 45617), (4719, 42369), (5357, 37323), (6331, 31581), (10527, 18993), (12441, 16071), (14123, 14157)]