20528944

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41389}}^1$

素因数の和:41428

約数の個数: 20

約数和(自身を含む): 41058880

約数和(自身を除く): 20529936

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 41389, 82778, 165556, 331112, 662224, 1283059, 2566118, 5132236, 10264472, 20528944]

約数ペア:

[(1, 20528944), (2, 10264472), (4, 5132236), (8, 2566118), (16, 1283059), (31, 662224), (62, 331112), (124, 165556), (248, 82778), (496, 41389)]