209291229

素因数分解:

$3^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{3137}}^1$

素因数の和:3506

約数の個数: 32

約数和(自身を含む): 355472640

約数和(自身を除く): 146181411

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 353, 1059, 2471, 3137, 3177, 7413, 9411, 9531, 21959, 22239, 28233, 65877, 66717, 84699, 197631, 592893, 1107361, 3322083, 7751527, 9966249, 23254581, 29898747, 69763743, 209291229]

約数ペア:

[(1, 209291229), (3, 69763743), (7, 29898747), (9, 23254581), (21, 9966249), (27, 7751527), (63, 3322083), (189, 1107361), (353, 592893), (1059, 197631), (2471, 84699), (3137, 66717), (3177, 65877), (7413, 28233), (9411, 22239), (9531, 21959)]