18505784

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1861}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 38208240

約数和(自身を除く): 19702456

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 113, 226, 452, 904, 1243, 1861, 2486, 3722, 4972, 7444, 9944, 14888, 20471, 40942, 81884, 163768, 210293, 420586, 841172, 1682344, 2313223, 4626446, 9252892, 18505784]

約数ペア:

[(1, 18505784), (2, 9252892), (4, 4626446), (8, 2313223), (11, 1682344), (22, 841172), (44, 420586), (88, 210293), (113, 163768), (226, 81884), (452, 40942), (904, 20471), (1243, 14888), (1861, 9944), (2486, 7444), (3722, 4972)]