218540147

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 281698560

約数和(自身を除く): 63158413

約数列:

[1, 7, 19, 43, 49, 53, 103, 133, 301, 371, 721, 817, 931, 1007, 1957, 2107, 2279, 2597, 4429, 5047, 5459, 5719, 7049, 13699, 15953, 31003, 38213, 40033, 43301, 49343, 84151, 95893, 103721, 111671, 217021, 234737, 267491, 303107, 589057, 726047, 1643159, 2121749, 4123399, 4460003, 5082329, 11502113, 31220021, 218540147]

約数ペア:

[(1, 218540147), (7, 31220021), (19, 11502113), (43, 5082329), (49, 4460003), (53, 4123399), (103, 2121749), (133, 1643159), (301, 726047), (371, 589057), (721, 303107), (817, 267491), (931, 234737), (1007, 217021), (1957, 111671), (2107, 103721), (2279, 95893), (2597, 84151), (4429, 49343), (5047, 43301), (5459, 40033), (5719, 38213), (7049, 31003), (13699, 15953)]