20781617754

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{263}}^1\times {\mathrm{5903}}^1$

素因数の和:6291

約数の個数: 64

約数和(自身を含む): 43991506944

約数和(自身を除く): 23209889190

約数列:

[1, 2, 3, 6, 23, 46, 69, 97, 138, 194, 263, 291, 526, 582, 789, 1578, 2231, 4462, 5903, 6049, 6693, 11806, 12098, 13386, 17709, 18147, 25511, 35418, 36294, 51022, 76533, 135769, 153066, 271538, 407307, 572591, 586753, 814614, 1145182, 1173506, 1552489, 1717773, 1760259, 3104978, 3435546, 3520518, 4657467, 9314934, 13169593, 26339186, 35707247, 39508779, 71414494, 79017558, 107121741, 150591433, 214243482, 301182866, 451774299, 903548598, 3463602959, 6927205918, 10390808877, 20781617754]

約数ペア:

[(1, 20781617754), (2, 10390808877), (3, 6927205918), (6, 3463602959), (23, 903548598), (46, 451774299), (69, 301182866), (97, 214243482), (138, 150591433), (194, 107121741), (263, 79017558), (291, 71414494), (526, 39508779), (582, 35707247), (789, 26339186), (1578, 13169593), (2231, 9314934), (4462, 4657467), (5903, 3520518), (6049, 3435546), (6693, 3104978), (11806, 1760259), (12098, 1717773), (13386, 1552489), (17709, 1173506), (18147, 1145182), (25511, 814614), (35418, 586753), (36294, 572591), (51022, 407307), (76533, 271538), (135769, 153066)]