21910977

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 37469952

約数和(自身を除く): 15558975

約数列:

[1, 3, 9, 11, 17, 33, 47, 51, 99, 141, 153, 187, 277, 423, 517, 561, 799, 831, 1551, 1683, 2397, 2493, 3047, 4653, 4709, 7191, 8789, 9141, 13019, 14127, 26367, 27423, 39057, 42381, 51799, 79101, 117171, 143209, 155397, 221323, 429627, 466191, 663969, 1288881, 1991907, 2434553, 7303659, 21910977]

約数ペア:

[(1, 21910977), (3, 7303659), (9, 2434553), (11, 1991907), (17, 1288881), (33, 663969), (47, 466191), (51, 429627), (99, 221323), (141, 155397), (153, 143209), (187, 117171), (277, 79101), (423, 51799), (517, 42381), (561, 39057), (799, 27423), (831, 26367), (1551, 14127), (1683, 13019), (2397, 9141), (2493, 8789), (3047, 7191), (4653, 4709)]