20213193

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 37158912

約数和(自身を除く): 16945719

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 53, 77, 91, 127, 143, 159, 231, 273, 371, 381, 429, 583, 689, 889, 1001, 1113, 1397, 1651, 1749, 2067, 2667, 3003, 4081, 4191, 4823, 4953, 6731, 7579, 9779, 11557, 12243, 14469, 18161, 20193, 22737, 29337, 34671, 47117, 53053, 54483, 74041, 87503, 127127, 141351, 159159, 222123, 262509, 381381, 518287, 612521, 962533, 1554861, 1837563, 2887599, 6737731, 20213193]

約数ペア:

[(1, 20213193), (3, 6737731), (7, 2887599), (11, 1837563), (13, 1554861), (21, 962533), (33, 612521), (39, 518287), (53, 381381), (77, 262509), (91, 222123), (127, 159159), (143, 141351), (159, 127127), (231, 87503), (273, 74041), (371, 54483), (381, 53053), (429, 47117), (583, 34671), (689, 29337), (889, 22737), (1001, 20193), (1113, 18161), (1397, 14469), (1651, 12243), (1749, 11557), (2067, 9779), (2667, 7579), (3003, 6731), (4081, 4953), (4191, 4823)]