278060787

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{15901}}^1$

素因数の和:16003

約数の個数: 24

約数和(自身を含む): 421721040

約数和(自身を除く): 143660253

約数列:

[1, 3, 9, 29, 67, 87, 201, 261, 603, 1943, 5829, 15901, 17487, 47703, 143109, 461129, 1065367, 1383387, 3196101, 4150161, 9588303, 30895643, 92686929, 278060787]

約数ペア:

[(1, 278060787), (3, 92686929), (9, 30895643), (29, 9588303), (67, 4150161), (87, 3196101), (201, 1383387), (261, 1065367), (603, 461129), (1943, 143109), (5829, 47703), (15901, 17487)]