249493503

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{8807}}^1$

素因数の和:8907

約数の個数: 32

約数和(自身を含む): 405872640

約数和(自身を除く): 156379137

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1349, 1491, 4047, 8807, 9443, 26421, 28329, 61649, 167333, 184947, 501999, 625297, 1171331, 1875891, 3513993, 4377079, 11880643, 13131237, 35641929, 83164501, 249493503]

約数ペア:

[(1, 249493503), (3, 83164501), (7, 35641929), (19, 13131237), (21, 11880643), (57, 4377079), (71, 3513993), (133, 1875891), (213, 1171331), (399, 625297), (497, 501999), (1349, 184947), (1491, 167333), (4047, 61649), (8807, 28329), (9443, 26421)]