17968509

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 30139200

約数和(自身を除く): 12170691

約数列:

[1, 3, 9, 13, 19, 39, 57, 59, 117, 137, 171, 177, 247, 411, 531, 741, 767, 1121, 1233, 1781, 2223, 2301, 2603, 3363, 5343, 6903, 7809, 8083, 10089, 14573, 16029, 23427, 24249, 33839, 43719, 72747, 101517, 105079, 131157, 153577, 304551, 315237, 460731, 945711, 1382193, 1996501, 5989503, 17968509]

約数ペア:

[(1, 17968509), (3, 5989503), (9, 1996501), (13, 1382193), (19, 945711), (39, 460731), (57, 315237), (59, 304551), (117, 153577), (137, 131157), (171, 105079), (177, 101517), (247, 72747), (411, 43719), (531, 33839), (741, 24249), (767, 23427), (1121, 16029), (1233, 14573), (1781, 10089), (2223, 8083), (2301, 7809), (2603, 6903), (3363, 5343)]