19438064

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1487}}^1$

素因数の和:1557

約数の個数: 40

約数和(自身を含む): 40592640

約数和(自身を除く): 21154576

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1487, 1634, 2974, 3268, 5948, 6536, 11896, 13072, 23792, 28253, 56506, 63941, 113012, 127882, 226024, 255764, 452048, 511528, 1023056, 1214879, 2429758, 4859516, 9719032, 19438064]

約数ペア:

[(1, 19438064), (2, 9719032), (4, 4859516), (8, 2429758), (16, 1214879), (19, 1023056), (38, 511528), (43, 452048), (76, 255764), (86, 226024), (152, 127882), (172, 113012), (304, 63941), (344, 56506), (688, 28253), (817, 23792), (1487, 13072), (1634, 11896), (2974, 6536), (3268, 5948)]