20382813

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 35239680

約数和(自身を除く): 14856867

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 121, 153, 187, 297, 363, 367, 459, 561, 1089, 1101, 1683, 2057, 3267, 3303, 4037, 5049, 6171, 6239, 9909, 12111, 18513, 18717, 36333, 44407, 55539, 56151, 68629, 108999, 133221, 168453, 205887, 399663, 617661, 754919, 1198989, 1852983, 2264757, 6794271, 20382813]

約数ペア:

[(1, 20382813), (3, 6794271), (9, 2264757), (11, 1852983), (17, 1198989), (27, 754919), (33, 617661), (51, 399663), (99, 205887), (121, 168453), (153, 133221), (187, 108999), (297, 68629), (363, 56151), (367, 55539), (459, 44407), (561, 36333), (1089, 18717), (1101, 18513), (1683, 12111), (2057, 9909), (3267, 6239), (3303, 6171), (4037, 5049)]