21196742

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79687}}^1$

素因数の和:79715

約数の個数: 16

約数和(自身を含む): 38250240

約数和(自身を除く): 17053498

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79687, 159374, 557809, 1115618, 1514053, 3028106, 10598371, 21196742]

約数ペア:

[(1, 21196742), (2, 10598371), (7, 3028106), (14, 1514053), (19, 1115618), (38, 557809), (133, 159374), (266, 79687)]