263227887

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{547}}^1$

素因数の和:1029

約数の個数: 40

約数和(自身を含む): 425166896

約数和(自身を除く): 161939009

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 457, 547, 1053, 1371, 1641, 4113, 4923, 5941, 7111, 12339, 14769, 17823, 21333, 37017, 44307, 53469, 63999, 160407, 191997, 249979, 481221, 575991, 749937, 2249811, 3249727, 6749433, 9749181, 20248299, 29247543, 87742629, 263227887]

約数ペア:

[(1, 263227887), (3, 87742629), (9, 29247543), (13, 20248299), (27, 9749181), (39, 6749433), (81, 3249727), (117, 2249811), (351, 749937), (457, 575991), (547, 481221), (1053, 249979), (1371, 191997), (1641, 160407), (4113, 63999), (4923, 53469), (5941, 44307), (7111, 37017), (12339, 21333), (14769, 17823)]