281567139

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{3947}}^1$

素因数の和:4079

約数の個数: 32

約数和(自身を含む): 444702720

約数和(自身を除く): 163135581

約数列:

[1, 3, 7, 21, 43, 79, 129, 237, 301, 553, 903, 1659, 3397, 3947, 10191, 11841, 23779, 27629, 71337, 82887, 169721, 311813, 509163, 935439, 1188047, 2182691, 3564141, 6548073, 13407959, 40223877, 93855713, 281567139]

約数ペア:

[(1, 281567139), (3, 93855713), (7, 40223877), (21, 13407959), (43, 6548073), (79, 3564141), (129, 2182691), (237, 1188047), (301, 935439), (553, 509163), (903, 311813), (1659, 169721), (3397, 82887), (3947, 71337), (10191, 27629), (11841, 23779)]