129187989

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 218949120

約数和(自身を除く): 89761131

約数列:

[1, 3, 7, 9, 21, 63, 79, 101, 237, 257, 303, 553, 707, 711, 771, 909, 1659, 1799, 2121, 2313, 4977, 5397, 6363, 7979, 16191, 20303, 23937, 25957, 55853, 60909, 71811, 77871, 142121, 167559, 181699, 182727, 233613, 426363, 502677, 545097, 1279089, 1635291, 2050603, 6151809, 14354221, 18455427, 43062663, 129187989]

約数ペア:

[(1, 129187989), (3, 43062663), (7, 18455427), (9, 14354221), (21, 6151809), (63, 2050603), (79, 1635291), (101, 1279089), (237, 545097), (257, 502677), (303, 426363), (553, 233613), (707, 182727), (711, 181699), (771, 167559), (909, 142121), (1659, 77871), (1799, 71811), (2121, 60909), (2313, 55853), (4977, 25957), (5397, 23937), (6363, 20303), (7979, 16191)]