260391609

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{21227}}^1$

素因数の和:21309

約数の個数: 24

約数和(自身を含む): 397388160

約数和(自身を除く): 136996551

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 4089, 12267, 21227, 63681, 191043, 615583, 997669, 1846749, 2993007, 5540247, 8979021, 28932401, 86797203, 260391609]

約数ペア:

[(1, 260391609), (3, 86797203), (9, 28932401), (29, 8979021), (47, 5540247), (87, 2993007), (141, 1846749), (261, 997669), (423, 615583), (1363, 191043), (4089, 63681), (12267, 21227)]