249635281

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{317}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 312606720

約数和(自身を除く): 62971439

約数列:

[1, 7, 19, 31, 133, 191, 217, 317, 589, 1337, 2219, 3629, 4123, 5921, 6023, 9827, 25403, 41447, 42161, 60547, 68789, 112499, 186713, 423829, 787493, 1150393, 1306991, 1876957, 8052751, 13138699, 35662183, 249635281]

約数ペア:

[(1, 249635281), (7, 35662183), (19, 13138699), (31, 8052751), (133, 1876957), (191, 1306991), (217, 1150393), (317, 787493), (589, 423829), (1337, 186713), (2219, 112499), (3629, 68789), (4123, 60547), (5921, 42161), (6023, 41447), (9827, 25403)]