28405581309

素因数分解:

$3^4\times 7^2\times {\mathrm{7156861}}^1$

素因数の和:7156887

約数の個数: 30

約数和(自身を含む): 49360877214

約数和(自身を除く): 20955295905

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 7156861, 21470583, 50098027, 64411749, 150294081, 193235247, 350686189, 450882243, 579705741, 1052058567, 1352646729, 3156175701, 4057940187, 9468527103, 28405581309]

約数ペア:

[(1, 28405581309), (3, 9468527103), (7, 4057940187), (9, 3156175701), (21, 1352646729), (27, 1052058567), (49, 579705741), (63, 450882243), (81, 350686189), (147, 193235247), (189, 150294081), (441, 64411749), (567, 50098027), (1323, 21470583), (3969, 7156861)]