19968844

素因数分解:

$2^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4723}}^1$

素因数の和:4885

約数の個数: 24

約数和(自身を含む): 40210688

約数和(自身を除く): 20241844

約数列:

[1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228, 4723, 9446, 18892, 33061, 66122, 132244, 713173, 1426346, 2852692, 4992211, 9984422, 19968844]

約数ペア:

[(1, 19968844), (2, 9984422), (4, 4992211), (7, 2852692), (14, 1426346), (28, 713173), (151, 132244), (302, 66122), (604, 33061), (1057, 18892), (2114, 9446), (4228, 4723)]