217414561

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{953}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 282078720

約数和(自身を除く): 64664159

約数列:

[1, 7, 13, 23, 91, 109, 161, 299, 763, 953, 1417, 2093, 2507, 6671, 9919, 12389, 17549, 21919, 32591, 86723, 103877, 153433, 228137, 284947, 727139, 1350401, 1994629, 2389171, 9452807, 16724197, 31059223, 217414561]

約数ペア:

[(1, 217414561), (7, 31059223), (13, 16724197), (23, 9452807), (91, 2389171), (109, 1994629), (161, 1350401), (299, 727139), (763, 284947), (953, 228137), (1417, 153433), (2093, 103877), (2507, 86723), (6671, 32591), (9919, 21919), (12389, 17549)]