21637473

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1685

約数の個数: 32

約数和(自身を含む): 35008512

約数和(自身を除く): 13371039

約数列:

[1, 3, 11, 13, 31, 33, 39, 93, 143, 341, 403, 429, 1023, 1209, 1627, 4433, 4881, 13299, 17897, 21151, 50437, 53691, 63453, 151311, 232661, 554807, 655681, 697983, 1664421, 1967043, 7212491, 21637473]

約数ペア:

[(1, 21637473), (3, 7212491), (11, 1967043), (13, 1664421), (31, 697983), (33, 655681), (39, 554807), (93, 232661), (143, 151311), (341, 63453), (403, 53691), (429, 50437), (1023, 21151), (1209, 17897), (1627, 13299), (4433, 4881)]