18871496

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 43908480

約数和(自身を除く): 25036984

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 43, 56, 68, 86, 119, 136, 172, 238, 301, 344, 461, 476, 602, 731, 922, 952, 1204, 1462, 1844, 2408, 2924, 3227, 3688, 5117, 5848, 6454, 7837, 10234, 12908, 15674, 19823, 20468, 25816, 31348, 39646, 40936, 54859, 62696, 79292, 109718, 138761, 158584, 219436, 277522, 336991, 438872, 555044, 673982, 1110088, 1347964, 2358937, 2695928, 4717874, 9435748, 18871496]

約数ペア:

[(1, 18871496), (2, 9435748), (4, 4717874), (7, 2695928), (8, 2358937), (14, 1347964), (17, 1110088), (28, 673982), (34, 555044), (43, 438872), (56, 336991), (68, 277522), (86, 219436), (119, 158584), (136, 138761), (172, 109718), (238, 79292), (301, 62696), (344, 54859), (461, 40936), (476, 39646), (602, 31348), (731, 25816), (922, 20468), (952, 19823), (1204, 15674), (1462, 12908), (1844, 10234), (2408, 7837), (2924, 6454), (3227, 5848), (3688, 5117)]