201221199868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{38821}}^1\times {\mathrm{99679}}^1$

素因数の和:138517

約数の個数: 24

約数和(自身を含む): 379238142080

約数和(自身を除く): 178016942212

約数列:

[1, 2, 4, 13, 26, 52, 38821, 77642, 99679, 155284, 199358, 398716, 504673, 1009346, 1295827, 2018692, 2591654, 5183308, 3869638459, 7739276918, 15478553836, 50305299967, 100610599934, 201221199868]

約数ペア:

[(1, 201221199868), (2, 100610599934), (4, 50305299967), (13, 15478553836), (26, 7739276918), (52, 3869638459), (38821, 5183308), (77642, 2591654), (99679, 2018692), (155284, 1295827), (199358, 1009346), (398716, 504673)]