21278566010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{355057}}^1$

素因数の和:355538

約数の個数: 32

約数和(自身を含む): 41337272592

約数和(自身を除く): 20058706582

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 461, 922, 2305, 4610, 5993, 11986, 29965, 59930, 355057, 710114, 1775285, 3550570, 4615741, 9231482, 23078705, 46157410, 163681277, 327362554, 818406385, 1636812770, 2127856601, 4255713202, 10639283005, 21278566010]

約数ペア:

[(1, 21278566010), (2, 10639283005), (5, 4255713202), (10, 2127856601), (13, 1636812770), (26, 818406385), (65, 327362554), (130, 163681277), (461, 46157410), (922, 23078705), (2305, 9231482), (4610, 4615741), (5993, 3550570), (11986, 1775285), (29965, 710114), (59930, 355057)]