31426988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1609}}^1$

素因数の和:1889

約数の個数: 24

約数和(自身を含む): 58153200

約数和(自身を除く): 26726212

約数列:

[1, 2, 4, 19, 38, 76, 257, 514, 1028, 1609, 3218, 4883, 6436, 9766, 19532, 30571, 61142, 122284, 413513, 827026, 1654052, 7856747, 15713494, 31426988]

約数ペア:

[(1, 31426988), (2, 15713494), (4, 7856747), (19, 1654052), (38, 827026), (76, 413513), (257, 122284), (514, 61142), (1028, 30571), (1609, 19532), (3218, 9766), (4883, 6436)]