21911252

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 44100672

約数和(自身を除く): 22189420

約数列:

[1, 2, 4, 11, 22, 37, 43, 44, 74, 86, 148, 172, 313, 407, 473, 626, 814, 946, 1252, 1591, 1628, 1892, 3182, 3443, 6364, 6886, 11581, 13459, 13772, 17501, 23162, 26918, 35002, 46324, 53836, 70004, 127391, 148049, 254782, 296098, 497983, 509564, 592196, 995966, 1991932, 5477813, 10955626, 21911252]

約数ペア:

[(1, 21911252), (2, 10955626), (4, 5477813), (11, 1991932), (22, 995966), (37, 592196), (43, 509564), (44, 497983), (74, 296098), (86, 254782), (148, 148049), (172, 127391), (313, 70004), (407, 53836), (473, 46324), (626, 35002), (814, 26918), (946, 23162), (1252, 17501), (1591, 13772), (1628, 13459), (1892, 11581), (3182, 6886), (3443, 6364)]