21752944

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9781}}^1$

素因数の和:9928

約数の個数: 20

約数和(自身を含む): 42453880

約数和(自身を除く): 20700936

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9781, 19562, 39124, 78248, 156496, 1359559, 2719118, 5438236, 10876472, 21752944]

約数ペア:

[(1, 21752944), (2, 10876472), (4, 5438236), (8, 2719118), (16, 1359559), (139, 156496), (278, 78248), (556, 39124), (1112, 19562), (2224, 9781)]