21984424

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 52099200

約数和(自身を除く): 30114776

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 89, 154, 178, 308, 356, 401, 616, 623, 712, 802, 979, 1246, 1604, 1958, 2492, 2807, 3208, 3916, 4411, 4984, 5614, 6853, 7832, 8822, 11228, 13706, 17644, 22456, 27412, 30877, 35288, 35689, 54824, 61754, 71378, 123508, 142756, 247016, 249823, 285512, 392579, 499646, 785158, 999292, 1570316, 1998584, 2748053, 3140632, 5496106, 10992212, 21984424]

約数ペア:

[(1, 21984424), (2, 10992212), (4, 5496106), (7, 3140632), (8, 2748053), (11, 1998584), (14, 1570316), (22, 999292), (28, 785158), (44, 499646), (56, 392579), (77, 285512), (88, 249823), (89, 247016), (154, 142756), (178, 123508), (308, 71378), (356, 61754), (401, 54824), (616, 35689), (623, 35288), (712, 30877), (802, 27412), (979, 22456), (1246, 17644), (1604, 13706), (1958, 11228), (2492, 8822), (2807, 7832), (3208, 6853), (3916, 5614), (4411, 4984)]