21503313

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2269}}^1$

素因数の和:2300

約数の個数: 28

約数和(自身を含む): 34735540

約数和(自身を除く): 13232227

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2269, 3159, 6807, 9477, 20421, 29497, 61263, 88491, 183789, 265473, 551367, 796419, 1654101, 2389257, 7167771, 21503313]

約数ペア:

[(1, 21503313), (3, 7167771), (9, 2389257), (13, 1654101), (27, 796419), (39, 551367), (81, 265473), (117, 183789), (243, 88491), (351, 61263), (729, 29497), (1053, 20421), (2269, 9477), (3159, 6807)]