19725328

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3323}}^1$

素因数の和:3391

約数の個数: 40

約数和(自身を含む): 44515008

約数和(自身を除く): 24789680

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 212, 371, 424, 742, 848, 1484, 2968, 3323, 5936, 6646, 13292, 23261, 26584, 46522, 53168, 93044, 176119, 186088, 352238, 372176, 704476, 1232833, 1408952, 2465666, 2817904, 4931332, 9862664, 19725328]

約数ペア:

[(1, 19725328), (2, 9862664), (4, 4931332), (7, 2817904), (8, 2465666), (14, 1408952), (16, 1232833), (28, 704476), (53, 372176), (56, 352238), (106, 186088), (112, 176119), (212, 93044), (371, 53168), (424, 46522), (742, 26584), (848, 23261), (1484, 13292), (2968, 6646), (3323, 5936)]