21009572

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1303}}^1$

素因数の和:1475

約数の個数: 24

約数和(自身を含む): 38337600

約数和(自身を除く): 17328028

約数列:

[1, 2, 4, 29, 58, 116, 139, 278, 556, 1303, 2606, 4031, 5212, 8062, 16124, 37787, 75574, 151148, 181117, 362234, 724468, 5252393, 10504786, 21009572]

約数ペア:

[(1, 21009572), (2, 10504786), (4, 5252393), (29, 724468), (58, 362234), (116, 181117), (139, 151148), (278, 75574), (556, 37787), (1303, 16124), (2606, 8062), (4031, 5212)]