21197176

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2647}}^1$

素因数の和:2684

約数の個数: 64

約数和(自身を含む): 53383680

約数和(自身を除く): 32186504

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2647, 4004, 5294, 8008, 10588, 18529, 21176, 29117, 34411, 37058, 58234, 68822, 74116, 116468, 137644, 148232, 203819, 232936, 240877, 275288, 378521, 407638, 481754, 757042, 815276, 963508, 1514084, 1630552, 1927016, 2649647, 3028168, 5299294, 10598588, 21197176]

約数ペア:

[(1, 21197176), (2, 10598588), (4, 5299294), (7, 3028168), (8, 2649647), (11, 1927016), (13, 1630552), (14, 1514084), (22, 963508), (26, 815276), (28, 757042), (44, 481754), (52, 407638), (56, 378521), (77, 275288), (88, 240877), (91, 232936), (104, 203819), (143, 148232), (154, 137644), (182, 116468), (286, 74116), (308, 68822), (364, 58234), (572, 37058), (616, 34411), (728, 29117), (1001, 21176), (1144, 18529), (2002, 10588), (2647, 8008), (4004, 5294)]