21167881263

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{150991}}^1$

素因数の和:151455

約数の個数: 24

約数和(自身を含む): 31477000256

約数和(自身を除く): 10309118993

約数列:

[1, 3, 9, 37, 111, 333, 421, 1263, 3789, 15577, 46731, 140193, 150991, 452973, 1358919, 5586667, 16760001, 50280003, 63567211, 190701633, 572104899, 2351986807, 7055960421, 21167881263]

約数ペア:

[(1, 21167881263), (3, 7055960421), (9, 2351986807), (37, 572104899), (111, 190701633), (333, 63567211), (421, 50280003), (1263, 16760001), (3789, 5586667), (15577, 1358919), (46731, 452973), (140193, 150991)]