248487993

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{643}}^1$

素因数の和:1035

約数の個数: 40

約数和(自身を含む): 401464448

約数和(自身を除く): 152976455

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 367, 643, 1053, 1101, 1929, 3303, 4771, 5787, 8359, 9909, 14313, 17361, 25077, 29727, 42939, 52083, 75231, 128817, 225693, 235981, 386451, 677079, 707943, 2123829, 3067753, 6371487, 9203259, 19114461, 27609777, 82829331, 248487993]

約数ペア:

[(1, 248487993), (3, 82829331), (9, 27609777), (13, 19114461), (27, 9203259), (39, 6371487), (81, 3067753), (117, 2123829), (351, 707943), (367, 677079), (643, 386451), (1053, 235981), (1101, 225693), (1929, 128817), (3303, 75231), (4771, 52083), (5787, 42939), (8359, 29727), (9909, 25077), (14313, 17361)]