21768453

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{773}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 37152000

約数和(自身を除く): 15383547

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 773, 1043, 1341, 2319, 3129, 4023, 5411, 6957, 9387, 16233, 20871, 28161, 48699, 115177, 146097, 345531, 806239, 1036593, 2418717, 3109779, 7256151, 21768453]

約数ペア:

[(1, 21768453), (3, 7256151), (7, 3109779), (9, 2418717), (21, 1036593), (27, 806239), (63, 345531), (149, 146097), (189, 115177), (447, 48699), (773, 28161), (1043, 20871), (1341, 16233), (2319, 9387), (3129, 6957), (4023, 5411)]