28219191

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9397}}^1$

素因数の和:9431

約数の個数: 32

約数和(自身を含む): 50523648

約数和(自身を除く): 22304457

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 9397, 28191, 65779, 103367, 122161, 197337, 310101, 366483, 723569, 855127, 1343771, 2170707, 2565381, 4031313, 9406397, 28219191]

約数ペア:

[(1, 28219191), (3, 9406397), (7, 4031313), (11, 2565381), (13, 2170707), (21, 1343771), (33, 855127), (39, 723569), (77, 366483), (91, 310101), (143, 197337), (231, 122161), (273, 103367), (429, 65779), (1001, 28191), (3003, 9397)]