21102788

素因数分解:

$2^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{4513}}^1$

素因数の和:4691

約数の個数: 24

約数和(自身を含む): 42467712

約数和(自身を除く): 21364924

約数列:

[1, 2, 4, 7, 14, 28, 167, 334, 668, 1169, 2338, 4513, 4676, 9026, 18052, 31591, 63182, 126364, 753671, 1507342, 3014684, 5275697, 10551394, 21102788]

約数ペア:

[(1, 21102788), (2, 10551394), (4, 5275697), (7, 3014684), (14, 1507342), (28, 753671), (167, 126364), (334, 63182), (668, 31591), (1169, 18052), (2338, 9026), (4513, 4676)]