21261339

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4211}}^1$

素因数の和:4248

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 15130341

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 153, 187, 297, 459, 561, 1683, 4211, 5049, 12633, 37899, 46321, 71587, 113697, 138963, 214761, 416889, 644283, 787457, 1250667, 1932849, 2362371, 7087113, 21261339]

約数ペア:

[(1, 21261339), (3, 7087113), (9, 2362371), (11, 1932849), (17, 1250667), (27, 787457), (33, 644283), (51, 416889), (99, 214761), (153, 138963), (187, 113697), (297, 71587), (459, 46321), (561, 37899), (1683, 12633), (4211, 5049)]