21215454

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2693}}^1$

素因数の和:2812

約数の個数: 32

約数和(自身を含む): 46164384

約数和(自身を除く): 24948930

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2626, 2693, 3939, 5386, 7878, 8079, 16158, 35009, 70018, 105027, 210054, 271993, 543986, 815979, 1631958, 3535909, 7071818, 10607727, 21215454]

約数ペア:

[(1, 21215454), (2, 10607727), (3, 7071818), (6, 3535909), (13, 1631958), (26, 815979), (39, 543986), (78, 271993), (101, 210054), (202, 105027), (303, 70018), (606, 35009), (1313, 16158), (2626, 8079), (2693, 7878), (3939, 5386)]