209969019

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3257}}^1$

素因数の和:3324

約数の個数: 48

約数和(自身を含む): 355773600

約数和(自身を除く): 145804581

約数列:

[1, 3, 9, 13, 19, 29, 39, 57, 87, 117, 171, 247, 261, 377, 551, 741, 1131, 1653, 2223, 3257, 3393, 4959, 7163, 9771, 21489, 29313, 42341, 61883, 64467, 94453, 127023, 185649, 283359, 381069, 556947, 804479, 850077, 1227889, 1794607, 2413437, 3683667, 5383821, 7240311, 11051001, 16151463, 23329891, 69989673, 209969019]

約数ペア:

[(1, 209969019), (3, 69989673), (9, 23329891), (13, 16151463), (19, 11051001), (29, 7240311), (39, 5383821), (57, 3683667), (87, 2413437), (117, 1794607), (171, 1227889), (247, 850077), (261, 804479), (377, 556947), (551, 381069), (741, 283359), (1131, 185649), (1653, 127023), (2223, 94453), (3257, 64467), (3393, 61883), (4959, 42341), (7163, 29313), (9771, 21489)]