20846168

素因数分解:

$2^3\times 7^3\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25809832

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 71, 98, 107, 142, 196, 214, 284, 343, 392, 428, 497, 568, 686, 749, 856, 994, 1372, 1498, 1988, 2744, 2996, 3479, 3976, 5243, 5992, 6958, 7597, 10486, 13916, 15194, 20972, 24353, 27832, 30388, 36701, 41944, 48706, 53179, 60776, 73402, 97412, 106358, 146804, 194824, 212716, 293608, 372253, 425432, 744506, 1489012, 2605771, 2978024, 5211542, 10423084, 20846168]

約数ペア:

[(1, 20846168), (2, 10423084), (4, 5211542), (7, 2978024), (8, 2605771), (14, 1489012), (28, 744506), (49, 425432), (56, 372253), (71, 293608), (98, 212716), (107, 194824), (142, 146804), (196, 106358), (214, 97412), (284, 73402), (343, 60776), (392, 53179), (428, 48706), (497, 41944), (568, 36701), (686, 30388), (749, 27832), (856, 24353), (994, 20972), (1372, 15194), (1498, 13916), (1988, 10486), (2744, 7597), (2996, 6958), (3479, 5992), (3976, 5243)]