21653288

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 42024960

約数和(自身を除く): 20371672

約数列:

[1, 2, 4, 8, 37, 74, 148, 191, 296, 382, 383, 764, 766, 1528, 1532, 3064, 7067, 14134, 14171, 28268, 28342, 56536, 56684, 73153, 113368, 146306, 292612, 585224, 2706661, 5413322, 10826644, 21653288]

約数ペア:

[(1, 21653288), (2, 10826644), (4, 5413322), (8, 2706661), (37, 585224), (74, 292612), (148, 146306), (191, 113368), (296, 73153), (382, 56684), (383, 56536), (764, 28342), (766, 28268), (1528, 14171), (1532, 14134), (3064, 7067)]