18866192

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:663

約数の個数: 40

約数和(自身を含む): 39060000

約数和(自身を除く): 20193808

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 139, 272, 278, 499, 556, 998, 1112, 1996, 2224, 2363, 3992, 4726, 7984, 8483, 9452, 16966, 18904, 33932, 37808, 67864, 69361, 135728, 138722, 277444, 554888, 1109776, 1179137, 2358274, 4716548, 9433096, 18866192]

約数ペア:

[(1, 18866192), (2, 9433096), (4, 4716548), (8, 2358274), (16, 1179137), (17, 1109776), (34, 554888), (68, 277444), (136, 138722), (139, 135728), (272, 69361), (278, 67864), (499, 37808), (556, 33932), (998, 18904), (1112, 16966), (1996, 9452), (2224, 8483), (2363, 7984), (3992, 4726)]