21631918

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7393}}^1$

素因数の和:7432

約数の個数: 32

約数和(自身を含む): 42589440

約数和(自身を除く): 20957522

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 418, 1463, 2926, 7393, 14786, 51751, 81323, 103502, 140467, 162646, 280934, 569261, 983269, 1138522, 1545137, 1966538, 3090274, 10815959, 21631918]

約数ペア:

[(1, 21631918), (2, 10815959), (7, 3090274), (11, 1966538), (14, 1545137), (19, 1138522), (22, 983269), (38, 569261), (77, 280934), (133, 162646), (154, 140467), (209, 103502), (266, 81323), (418, 51751), (1463, 14786), (2926, 7393)]