20900944

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42139}}^1$

素因数の和:42178

約数の個数: 20

約数和(自身を含む): 41802880

約数和(自身を除く): 20901936

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42139, 84278, 168556, 337112, 674224, 1306309, 2612618, 5225236, 10450472, 20900944]

約数ペア:

[(1, 20900944), (2, 10450472), (4, 5225236), (8, 2612618), (16, 1306309), (31, 674224), (62, 337112), (124, 168556), (248, 84278), (496, 42139)]