245536221

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{615379}}^1$

素因数の和:615408

約数の個数: 16

約数和(自身を含む): 393843200

約数和(自身を除く): 148306979

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 615379, 1846137, 4307653, 11692201, 12922959, 35076603, 81845407, 245536221]

約数ペア:

[(1, 245536221), (3, 81845407), (7, 35076603), (19, 12922959), (21, 11692201), (57, 4307653), (133, 1846137), (399, 615379)]