20997156

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{631}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 50964480

約数和(自身を除く): 29967324

約数列:

[1, 2, 3, 4, 6, 12, 47, 59, 94, 118, 141, 177, 188, 236, 282, 354, 564, 631, 708, 1262, 1893, 2524, 2773, 3786, 5546, 7572, 8319, 11092, 16638, 29657, 33276, 37229, 59314, 74458, 88971, 111687, 118628, 148916, 177942, 223374, 355884, 446748, 1749763, 3499526, 5249289, 6999052, 10498578, 20997156]

約数ペア:

[(1, 20997156), (2, 10498578), (3, 6999052), (4, 5249289), (6, 3499526), (12, 1749763), (47, 446748), (59, 355884), (94, 223374), (118, 177942), (141, 148916), (177, 118628), (188, 111687), (236, 88971), (282, 74458), (354, 59314), (564, 37229), (631, 33276), (708, 29657), (1262, 16638), (1893, 11092), (2524, 8319), (2773, 7572), (3786, 5546)]