18691568

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9817}}^1$

素因数の和:9849

約数の個数: 40

約数和(自身を含む): 43827552

約数和(自身を除く): 25135984

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 9817, 19634, 39268, 68719, 78536, 137438, 157072, 166889, 274876, 333778, 549752, 667556, 1099504, 1168223, 1335112, 2336446, 2670224, 4672892, 9345784, 18691568]

約数ペア:

[(1, 18691568), (2, 9345784), (4, 4672892), (7, 2670224), (8, 2336446), (14, 1335112), (16, 1168223), (17, 1099504), (28, 667556), (34, 549752), (56, 333778), (68, 274876), (112, 166889), (119, 157072), (136, 137438), (238, 78536), (272, 68719), (476, 39268), (952, 19634), (1904, 9817)]