21163758

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2411}}^1$

素因数の和:2453

約数の個数: 64

約数和(自身を含む): 55572480

約数和(自身を除く): 34408722

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 38, 42, 57, 66, 77, 114, 133, 154, 209, 231, 266, 399, 418, 462, 627, 798, 1254, 1463, 2411, 2926, 4389, 4822, 7233, 8778, 14466, 16877, 26521, 33754, 45809, 50631, 53042, 79563, 91618, 101262, 137427, 159126, 185647, 274854, 320663, 371294, 503899, 556941, 641326, 961989, 1007798, 1113882, 1511697, 1923978, 3023394, 3527293, 7054586, 10581879, 21163758]

約数ペア:

[(1, 21163758), (2, 10581879), (3, 7054586), (6, 3527293), (7, 3023394), (11, 1923978), (14, 1511697), (19, 1113882), (21, 1007798), (22, 961989), (33, 641326), (38, 556941), (42, 503899), (57, 371294), (66, 320663), (77, 274854), (114, 185647), (133, 159126), (154, 137427), (209, 101262), (231, 91618), (266, 79563), (399, 53042), (418, 50631), (462, 45809), (627, 33754), (798, 26521), (1254, 16877), (1463, 14466), (2411, 8778), (2926, 7233), (4389, 4822)]