20762994

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:511

約数の個数: 64

約数和(自身を含む): 50429952

約数和(自身を除く): 29666958

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 37, 42, 62, 74, 93, 111, 186, 217, 222, 259, 431, 434, 518, 651, 777, 862, 1147, 1293, 1302, 1554, 2294, 2586, 3017, 3441, 6034, 6882, 8029, 9051, 13361, 15947, 16058, 18102, 24087, 26722, 31894, 40083, 47841, 48174, 80166, 93527, 95682, 111629, 187054, 223258, 280581, 334887, 494357, 561162, 669774, 988714, 1483071, 2966142, 3460499, 6920998, 10381497, 20762994]

約数ペア:

[(1, 20762994), (2, 10381497), (3, 6920998), (6, 3460499), (7, 2966142), (14, 1483071), (21, 988714), (31, 669774), (37, 561162), (42, 494357), (62, 334887), (74, 280581), (93, 223258), (111, 187054), (186, 111629), (217, 95682), (222, 93527), (259, 80166), (431, 48174), (434, 47841), (518, 40083), (651, 31894), (777, 26722), (862, 24087), (1147, 18102), (1293, 16058), (1302, 15947), (1554, 13361), (2294, 9051), (2586, 8029), (3017, 6882), (3441, 6034)]