213538473

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 336473280

約数和(自身を除く): 122934807

約数列:

[1, 3, 9, 19, 43, 57, 113, 129, 171, 257, 339, 387, 771, 817, 1017, 2147, 2313, 2451, 4859, 4883, 6441, 7353, 11051, 14577, 14649, 19323, 29041, 33153, 43731, 43947, 87123, 92321, 99459, 209969, 261369, 276963, 551779, 629907, 830889, 1248763, 1655337, 1889721, 3746289, 4966011, 11238867, 23726497, 71179491, 213538473]

約数ペア:

[(1, 213538473), (3, 71179491), (9, 23726497), (19, 11238867), (43, 4966011), (57, 3746289), (113, 1889721), (129, 1655337), (171, 1248763), (257, 830889), (339, 629907), (387, 551779), (771, 276963), (817, 261369), (1017, 209969), (2147, 99459), (2313, 92321), (2451, 87123), (4859, 43947), (4883, 43731), (6441, 33153), (7353, 29041), (11051, 19323), (14577, 14649)]