21945616

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 54282240

約数和(自身を除く): 32336624

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 47, 56, 77, 88, 94, 112, 154, 176, 188, 308, 329, 376, 379, 517, 616, 658, 752, 758, 1034, 1232, 1316, 1516, 2068, 2632, 2653, 3032, 3619, 4136, 4169, 5264, 5306, 6064, 7238, 8272, 8338, 10612, 14476, 16676, 17813, 21224, 28952, 29183, 33352, 35626, 42448, 57904, 58366, 66704, 71252, 116732, 124691, 142504, 195943, 233464, 249382, 285008, 391886, 466928, 498764, 783772, 997528, 1371601, 1567544, 1995056, 2743202, 3135088, 5486404, 10972808, 21945616]

約数ペア:

[(1, 21945616), (2, 10972808), (4, 5486404), (7, 3135088), (8, 2743202), (11, 1995056), (14, 1567544), (16, 1371601), (22, 997528), (28, 783772), (44, 498764), (47, 466928), (56, 391886), (77, 285008), (88, 249382), (94, 233464), (112, 195943), (154, 142504), (176, 124691), (188, 116732), (308, 71252), (329, 66704), (376, 58366), (379, 57904), (517, 42448), (616, 35626), (658, 33352), (752, 29183), (758, 28952), (1034, 21224), (1232, 17813), (1316, 16676), (1516, 14476), (2068, 10612), (2632, 8338), (2653, 8272), (3032, 7238), (3619, 6064), (4136, 5306), (4169, 5264)]